Colt 9mm feed ramp Why a 9mm was desirable is another story. Feb 17, 2010 · The ramped barrels came into vogue with the high pressure 9mm cartridges developed to reach "major power factor" in "practical" competition. 38 Super, . I had him machine mine. This is achieved by using progressively finer abrasives to eliminate imperfections and create a smoother, more consistent surface that reduces friction and prevents stoppages caused by rounds hanging Mar 11, 2025 · Following up from my previous thread. Plug and play. The easy drop in design installs in minutes, with no gun smithing or permanent modifications needed to the lower receiver. Nov 6, 2013 · I did a search, but couldn't find what I wanted. Jun 22, 2020 · 1911 - My pistol won't feed the first round. 5 degrees with a 1/32" gap between the edge of the barrel ramp and the ramped portion of the barrel. Mar 13, 2019 · Hey guys. I’m a few thousand rounds in with a couple hundred hollow points with zero feeding issues when it’s not ammo related. A greater portion of 9mm, 38 Super and 10mm/40 1911’s are fitted with a version of a ramped barrel. INSTALLED COMPONENTS: Feed Ramp, Bolt Catch, Mag Catch CMMG has made a small modification to 9mm barrels in order for them to be compatible with Mk9 lower receivers. Many folks will The proprietary feed ramp was tuned to deliver cartridges perfectly to the centerline of the chamber of the barrel, unlike the original, pre Colt design which may not have involved a capable CAD system. i wanted to thank all those involved in that archived post for the research and effort is still helping shooters today! Feb 17, 2023 · But with 9, 38S or 10 there is. All the exterior dimensions are the same as a milspec. When not installed it's a regular milspec. The BCG appears to be riding high and catching on something at the buffer tube. Compatible with standard mil-spec uppers. Last round bolt hold open Steel feed ramps Installs from the bottom of the magwell with top and bottom locking Screws No Faxon Firearms 16” 9mm AR barrel — Nitride finish, 4150 CMV, 1:10 twist, light tapered profile, 1/2x28 threads, Glock & Colt feed ramp compatible. Details: The Kaw Valley 9mm barrel is available in four lengths and designed to work with Colt or Glock style AR-9 builds as well as Mil-Spec AR15 uppers. 5 inch Modern Series Barrel is machined from CrMoV steel with a QPQ Corrosion Resistant Finish and 1/2-28 x . I tried modifying the feed lips to clear, but it required so much material to be removed, I gave up. Kaw Valley Precision AR-15 10. Unlike the standard build, where the ramp is a part of the frame. I am running into a picky Colt Defender in 9mm when it comes to hollowpoints. The main issue was the feed ramp in the . All the internals minus the magwell, feed ramp, ejector, and bolt catch are milspec. All of my AR9 was hand Dremel, diamond filing with feed ramp and have fed thousands of round reliable, glock and colt platform. 1911 Magazine Analysis: Feeding Time The bolt is advertised for colt or glock compatibility, but there was major interference in the feed ramp "ears" and the bolt. Joe Dec 11, 2016 · In order to effect a better understanding of the dimensions and conditions critical to reliable feeding in the 1911 pistol, I thought this might be a good idea to go into more detail than the average magazine article. Requires the use of a unique magwell conversion (Colt/Rock River style) with UZI mags or a dedicated 9mm lower with Glock mags. Jan 10, 2018 · Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. all of ten minutes work: I meant the alignment towards the feed ramp. Feb 13, 2023 · I wonder if anyone came across a 1911 custom/semi-custom build in 45acp with a fully Supported chamber and hand polish feed ramp. Kaw Valley Precision 9MM Barrels are button rifled out of 4150 CMV Steel, QPQ Salt Bath Nitrided, with an 11-degree target crown for the best accuracy and durability possible. This mag well adaptor allows you to use Colt or UZI-style 9mm magazines in your AR-15 platform, enabling you to shoot 9mm ammunition with ease. I am guessing the gouge came from either the follower hitting the feed ramp, or hollow points hitting the soft aluminum feed ramp. Specs Spinta 9mm BCG cut for standard hammer PSA NiB Milspec trigger pack Kak 5. Typically in 9mm guys like a ramped barrel. Jan 6, 2024 · Integral 16" 9mm AR-15 barrel — blowback, 4150 CMV, nitride, 1:10 twist, light taper, Glock & Colt compatible feed ramps. NOTE: Use 124 Grain Ammunition 9MM Bolt Carrier Group This 9mm chambered 5. 38 super ejector. Now looking for a used one from prior to the firing pin safety introduction and I am curious about the feedramps. Jan 5, 2022 · On a Government Model-sized 1911, the frame ramp angle is 31. The original Colt 9mm ejector is longer than an aftermarket . Apr 12, 2021 · Hi, i just finished building my 9mm ar, i used a Spikes Tactical 9mm lower and an Aeroprecision 10. My understanding is anodized aluminum is pretty durable but there seems to be some To maximize your AR 15 build, try out the 9mm chambered 11 inch Modern Series Barrel. 200” or more. When the bolt is pulled reward it hangs Dec 28, 2019 · Are there any dings or imperfections on the feed ramp? If so, polish the feed ramp to remove the imperfections, not to a mirror finish. 38 Super frame in front of me and the feed ramps are definately different. … Apr 15, 2020 · Colt feed ramp - barrel throat gap Colt barrel colt feed ramp 1 reading Jump to Latest 6. Mar 9, 2022 · I seem to have a feed ramp issue. AR 15 9MM Mag Well Adapter This USA Made adapter allows for easy conversion from any standard . Feed ramps on a firearm are critical to proper function, “no feed no fire” they say. Ballistic Advantage EPC barrel – Makes barrels for Aero, often less expensive. Description The TACCOM feed ramp is designed to be used with ‘GLOCK’ Magazine lowers and Standard AR15 uppers, without the use of the BHO feature in either the upper or lower, where the gap between the back of the barrel and front of the magazine is . However, if it results in a change in the angle of the ramp or if it rounds off the top edge of the ramp, feeding can be compromised. Colt AR-15 / SMG Magwell Conversion Adapter, for 9mm *NEW* Colt AR-15 / SMG Magwell Conversion Adapter for 9mm, in *NEW* condition. net Street address: 3571 Hansen Ave, Sturgis SD 57785 You still have use of our patent pending extreme feed ramp that can be used with any standard 9mm bolt on the market today. Sep 29, 2019 · Why is it that Colt 9mm 1911s have unramped barrels? Isnt it necesary because the 9mm has higher velocites and most competing 1911 manufacturers are using ramped barrels? Had to try the 20 dollar taccom feed ramp upgrade for the Glock dedicated AR9 systems. " Regards, Walt Author, The M1911 Complete Assembly Guide, Dec 12, 2009 · Ramped barrels that use the Wilson/Nowlin or Clark/Para, seem to feed more reliably from my experience using them. Www. Some are single and some have a dual style feed ramps Lower with VM mag block single ramp CMMG lower single ramp NEW FRONTIER C5 lower dual ramps Primarily I’m using Colt and UZI platform magazines not Glock mags. 45s I was unhappy with what I considered to be an excessively steep ramp on the 9mm. Enhanced Before the feed cone was popular. Expand the versatility of your AR-15 with our AR-15 9mm Mag Well Adaptor for Colt / UZI Style, offering a versatile caliber conversion. Oct 6, 2024 · I got a failure to feed were the round nose dived and struck the frame feed ramp from all 3 types of mags I tried (stock 8 round colt, full size 9 round colt, Wilson combat 10 round). Integrated feed ramp and barrel extension. 56mm lowers, the magazine well was natively sized for the Colt 9mm magazine. Rather than use a magazine well adaptor assembled to a 5. Key features are: Last round bolt hold open Steel feed ramps Installs from the bottom of the magwell with top and bottom locking screws No Oct 15, 2019 · We recently reached out to Chad Albrecht at School of the American Rifle to discuss AR-15 feed ramp problems. It took all of about 45 minutes of polishing and a little dremel work and she was up and running flawlessly using Melaform and C-Products mags. Compatible with Colt SMG and Uzi-style magazines. And not all companies use a different feed ramp. Most ammo doesn't ride up the ramp like you'd think. May 19, 2008 · I wouldn't use Colt magazines in your Springfield, When using the original Colt 9mm mags with a spacer in the back of the mag, an extra long ejector is needed. Built from T-6061 aluminum with a black anodized finish, it features steel feed ramps and ejector, and supports last-round bolt hold open. I don't have any FTE and it will always feed when I cycle the bolt with the CH. I had an issue with charging. The barrel is not ramped, and when was first installed in the frame overhung the frame ramp by 0. Mag adapters are more problematic than dedicated lowers. KVP 9MM barrels have an integrated feed ramp and will work with both Colt and Glock style AR-9 rifles or pistols. Aug 7, 2017 · Originally, Colt came out with the 9mm, with the standard feed ramp, in 1950 with the aluminum framed Colt Commander. Requires the use of a unique magwell conversion (Colt/Rock River style Check the mag adapter and feed ramp on the adapter. 56mm lowers, the magazine well was attractively and natively sized for the Colt 9mm magazine. I'm assuming it's May 2, 2020 · I'm a . Compatible with both Glock ® and Colt-style lower receivers, the blowback system ensures simplified operation—eliminating the need for a gas block or tube. What is the difference between different AR-15 platform 9mm barrels' feed cones? For example, what makes a 9mm barrel on an AR-15 upper properly chamber from a Glock magazine or Glock-style magwell vs a standard Colt magwell & Colt magazine? What is the difference in sort of cone/frustrum Jul 25, 2020 · I used one of the Colt 9MM kits years ago on a Colt . I am hoping someone who has a non-ramped 9mm 1911 can chime in with what hollowpoint worked best for you. The anodized aluminum, 9mm mag block with steel insert for feed ramp, accepts Colt style 9mm magazines. The easy drop in design installs in minutes, with no gunsmithing or permanent modifications needed to the lower receiver. Legal 16" overall length. Jul 31, 2013 · The only difference I'm aware of between a 9mm and 45 frame is the shape of the feed ramp. 45 guy but recently fit a ramped 9mm barrel. This modification only applies to Mk9 platform lower receivers and does not positively or negatively affect functionality of the barrel with a MkGs, Mk4 or Mk17 platform lower receiver. . I finally was able to determine that the bolt is hitting on the base of the feed ramp of the lower, not allowing the upper and lower to come Apr 11, 2011 · I have a Spikes Tactical billet 9mm upper which came complete from Spikes. Dec 31, 2019 · The feed ramp is also an issue with PSA Colt 9. The upper is a kit from Davidson Defense "Corncrake" . Sep 4, 2022 · Polishing feed ramps is a popular and easy “improvement” that can be done in order to aid in the reliable feeding of your firearm. Typically it is done to pistols with a dedicated feed ramp rather than a feed throat. Feb 27, 2020 · I sold my last Colt, a Combat Commander years ago, as nothing my smith or I could do would allow HP ammo to be fired in that gun. Mar 18, 2025 · I had to file a tiny bit of material off the feed ramp for one particular brand of upper and bolt but that was a few minutes work. Can a . Some of the new Schuemann ramped barrels have a slightly curved feed ramp, that takes in consideration the different angles that may occur from a bullet striking higher or lower on the feed ramp. In an optimal setup all of the magazines should produce the same size and location of the bullet impact circle on the feed ramp. 45 frame and a Colt LWT . Starting life as a raw 4140 CM steel 9mm 1/10 twist blank, we machine them in our shop for maximum concentricity, accuracy and include the special hand polished feed cone we have developed to ensure smooth feeding. Dec 8, 2015 · If I remember correctly there are differences between the feed ramp of 9mm vs. Was only able to get around 45 rounds through it before the feed ramp got… Sep 5, 2016 · It's possible the Colt tech did some light polishing but was cautious to avoid going through the anodized surface - leaving the uneven appearance. Ask your gunsmith which style of ramp he prefers to install. Got an H&R SMG lower for my Colt 635 upper and went to the range today. Ghost Firearms 9mm Adapter Drop In Mag Block This Adapter Drop In Mag Block converts your standard AR-15 model to accept affordable, lower-penetrating 9 mm rounds using a COLT STYLE MAGAZINE. Roll pin not included. Oct 23, 2016 · A polished feed ramp is a thing of beauty. I replaced the barrel in my 9mm AR PDW with one so I could feed fat mouth 147gr HST without issues. Jul 27, 2020 · With the barrel ramp…aka “throat”…there’s more wiggle room as long as the bottom edge of the barrel ramp is sitting slightly forward of the top of the feed ramp…and even if that gap isn’t there…many pistols with the optimum feed ramp will feed hardball without a hitch. This the same barrel that is the basis for our ULW barrel, only with out the shroud. Shop CMMG, Inc MK9 Feed Ramp | 5 Star Rating on 1 Review for CMMG, Inc MK9 Feed Ramp + Free Shipping over $49. All 3 parts can be found at Primary Arms. Designed to work with both Colt/RR and Glock style AR builds. This design provides some additional support to the cartridge, while still allowing for a smooth feed. It has an actual ramp, not one cut into the chamber. Our Mk9 platform is designed to use Colt SMG-style magazines and is offered in both BANSHEE and RESOLUTE configurations. texas2avideo. Jul 18, 2022 · On 7/18/2022 at 12:40 PM, Tampa-XD45 said: Probably not what you want to hear, but I had a CMMG Colt style 9mm lower that never ran consistently enough for competition. Contents: 3 Diamond Burrs (For Colt/FN 2 Stage Ramps – Diamond Burr in the Picture is the OLD Style/ The NEW Style is smaller and easier to use) 1 Cut Lube (For Diamond Burrs & Stones) Compatible with all, Colt-type, 9mm upper receivers, the feed ramp is cut for reliable feeding with all types of ammo, including hollow point and frangible ball. 40 or 10mm. When you do this you aren't using a grinding or sanding wheel and trying to cut a feed ramp into it, you are just using a buffing wheel (the small 3/8" cylindrical buff) and some buffing compound to polish up the lower half of the mouth of the chamber. Our new ramped barrel is just the thing for competitors who utilize glock and colt style PCCs. com -Never cut or polish the aluminum M4 Feed Ramps in your upper receiver! This Kit is made to cut or polish the STEEL Feed Ramps on your Barrel Extension ONLY. Jan 10, 2009 · A 9mm/38 style frame ramp is different from a . Sep 10, 2018 · Have you got a picture of the ramp you cut? If you really want a ramp you could just replace the barrel with a Shooting Innovations ramped barrel. The integral ramp barrel was first seen, I believe, on the FN (Browning) M1935, "High Power. I'm having failure to feed issues and I am hypothezing that the round is getting "stuck" by the right portion of the adapter feed ramp. It includes an M4 feed ramp extension for reliable feeding across various ammunition types and platforms. 45 frame; its pretty obvious. 010". The first critical spec is feed and barrel ramp angles. I am using a Colt dedicated 9mm lower that has the pinned magazine well adapter and the 9mm hammer, all factory original. All Colt 1911s regardless of cartridge are built with standard barrels (9mm, . I’ve only owned steel framed 1911’s. FWIW. These don’t feed though. Both can be used for 9mm. The 9mm AR barrel has an integrated feed ramp designed for consistent ammo feed, a 1:10 rifling twist, and is cut from CMV steel for long life and is available in four lengths. You still have use of our patent pending extreme feed ramp that can be used with any stand 9mm bolt on the market today. This USA Made adapter allows for easy conversion from any standard . 5” 9mm AR barrel — Nitride finish, 4150 CMV steel, 1:10 twist, blowback operation, Glock & Colt feed ramp compatible. 45 1911's. Jun 23, 2020 · Integral 16" 9mm AR-15 barrel — blowback, 4150 CMV, nitride, 1:10 twist, light taper, Glock & Colt compatible feed ramps. The feed ramp is ideally 31-31. I'm shooting 115 grain 9mm. If colt uses a 2 pin bolt in adapter. May 1, 2016 · My 9mm Springfield Ultra Compact ramped barrel took a good deal of recontouring - not just "polishing" - to convert it from an integral ramp into a FEED ramp. My Hahn and Spikes 9mm AR15 Colt mag adapters ran far better than the CMMG 9mm lower. Install, operations, testing and results. When all parts are installed it is a 1:1 copy to the cmmg Colt. Not sure on Colts other non 45 offerings. Because of my experience with . This malfunction is commonly known as a nose dive stoppage. are all the same, as far as I know. If you use a Dremel for this operation, you must go lightly and carefully. 3K views 7 replies 5 participants last post by Serpico1985 Apr 15, 2020 Dec 11, 2022 · Overall, feed ramp issues can be easily addressed through the use of a ramped barrel, which can save the need to completely replace the frame. 5 degrees Aug 15, 2022 · On the other hand, if you are using specific hollow points or other types of ammunition, you may need to modify the feed ramp or throat to better fit these rounds. 45 cal 1911 frame be successfully converted to 9mm with By purchasing CMMG AR-9 Feed Ramp for 9mm AR Rifles from our online store, you are guaranteed to receive a high-quality item. 45 feed ramp trying to feed 9MM Description Here is your chance to grab a 9mm upper at a downright inexpensive price! We’ve taken our famous Super Feed barrel and hand polished the feed ramp; Assembled it into a slick side billet upper receiver, using our extreme ULW hand guard. 400 full profile threads. Jul 19, 2023 · IIRC, the feed ramp on a 1911 should be 31. It’s sporadic and he’s about to chuck the thing. Check out BALLISTIC ADVANTAGE AR-15 MODERN SERIES BARRELS 9MM with 1 review and an overall rating of 5. 5" 9MM Barrel and Linear Compensator Combo. 45 ramp. But still, due to issues with the . When it came time to build another Colt style lower, the choice was easy Jun 11, 2023 · Please educate me or point me to good links on this subject, as I could not find relevant readings online. The feed ramp and magazine interface in this system was improved over Colt. The bolt has no issues clearing the feed ramp or resetting the trigger. May 27, 2009 · Hello 1911 Forum, I've built a 9mm 6" long slide upper for my Colt series 80 frame from Fusion Firearms parts. After break-in, all my 1911's get a polished feed ramp. Since your frame is cut for a ramped barrel, that takes that consideration out of the equation. 45 and have been having some issues. Mar 17, 2021 · If you read the information amphibian has provided you'll see that he modified the feed ramp, magazine catch and the bolt catch in order to be able to use Colt style magazines with his CMMG 9mm RDB upper. The bottom picture shows a failure-to-feed of the first round where the nose of the bullet is jammed against the frame feed ramp. Nov 29, 2022 · An R&D Precision Colt magazine magwell adapter is an inexpensive and reversable way to convert an AR lower to 9mm. I know it depends on the individual pistol and I will try out anything before I start carrying it but what types of defensive ammo tend to work well in 1911s? Is there anything I can do to make sure it likes hollow points? Should I polish the feed ramp? Jun 23, 2023 · Within my humble experience, the front ramp type magazines are a wonderful thing in getting the regular unramped Colt type 9mm barrels to feed all bullet shapes reliably. 5 degrees angle. 5 degrees as I could without compromising case support. All barrels are manufactured under ISO:9001 & AS:9100 quality certifications. What's wrong? The Smithy TacFire's Colt Magazine Magwell Adapter allows for easy conversion of from any standard 223/5. Oct 23, 2016 · 1911 Troubleshooting: Feed Failures1911 Troubleshooting: Feed Failures Fully 95% of all feed-related failures are can be traced straight back to the magazine. It happens maybe 1 in every 10-12 rounds. Confirmed enhanced feed cone. When I tried to put it together with my upper, it would not go together. But the dimensions for rails etc. Some are the same for all calibers (so I've heard). By ensuring a smooth transition from the feed ramp to the barrel, proper feeding of ammunition can be maintained in your 1911 pistol. Haven't had a single failure-to-feed or bulged case head since. Sep 6, 2020 · i use a dremel to create a feed ramp on my AR9 barrel. I appear to be having a feeding issue with my AR9 Colt Mag. Made from 6000 series billet aluminum with a steel insert for the feed ramp. It features a drop-in design with steel feed ramps and without disassembly of the bolt catch. The remaining few causes are due to the extractor and/or the ammunition, with only about 1% attributable to the gun. The Jun 9, 2021 · As a general rule, factory 45 caliber 1911’s aren’t fitted with ramped barrels. Mar 28, 2018 · 1911 Feeding issues and the Extractor Handguns: The Semi-automatic Forum Jun 11, 2023 · Please educate me or point me to good links on this subject, as I could not find relevant readings online. The issue i am having is that when the bolt goes back and ejects the spent shell it moves the next round in the mag out of position thus creating a Aug 16, 2015 · The feed ramp had a gouge across it, which I polished out. 5 inch upper with a KAW 9mm BCG and colt mags. The barrel’s integrated feed ramp provides you with consistently smooth ammo cycling, and the 1:10 rifling twist is designed to effectively stabilize the 9mm Luger round for consistent short- and long-range accuracy. Crafted with precision and durability in mind, our mag well adaptor ensures a secure and reliable fit, providing Feb 11, 2024 · How to Polish the Feed Ramp on a Semi-Auto Pistol Polishing the feed ramp on a semi-auto pistol involves carefully smoothing and refining the surface to improve the reliable feeding of ammunition. Obviously you never see Dec 8, 2016 · On caspian frames the 9mm frame cut is shallower than on the . A bit of time with my Dremel and Flitz on a Kimber 9mm feed ramp. I‘ve put 400 rounds through the pistol so far and it isn’t The AR-STONER™ 9mm Magazine Adapter Block for the AR-15 platform converts your standard lower to accept 9mm rounds. The pic showed that the barrel's ramp came just a bit short of the frame ramp, and the poster said that the 45 acp round hit the frame ramp Oct 1, 2018 · I’ve got a buddy who happens to have one of the psa 9mm carbines and he’s at his wits end with a feed issue he’s having. This CMMG AR-9 Feed Ramp for 9mm Mk 9 AR-15 Rifles works only with the CMMG Mk 9 dedicated 9mm lower. It’s also the first thing that the inexperienced shooter looks at and eventually toys with. I dressed this Description Kaw Valley Precision 9MM Barrels are button rifled out of 4150 CMV Steel, QPQ Salt Bath Nitrided, with an 11-degree target crown for the best accuracy and durability possible. 0, available Online at Brownells Today and many more Rifle Barrels & Parts products are available in our Gun Parts Department. 9mm AR-15 Mag Well Adaptor for Colt style magazines. He just did the taccom feed ramp extension and still had the issue. Jun 21, 2010 · I need just the feed ramp, for the colt style. I've eliminated a lot of basic possibilities and found Apr 20, 2021 · Feed ramps help guide the cartridge into the chamber, but not all feed ramps are designed the same way and some serve better than others. Our Macon Armory magazine well adapter is a bottom-load adapter made from anodized 6061-T6 aluminum with hardened steel bolt catch actuator and feed ramp. Aug 19, 2018 · So I have a couple 9mm rifles now and they have different style feed ramps. Many recommend using a Q-Tip with polishing compound to avoid screwing up the ramp. 45 ramp has less metal on either side of it than does a 9mm. The bolt came modified for hammer clearance. No Bushing on a Bull Barrel. Feeding problems can be attributed to many causes but, as others have noted, magazines, springs, and extractor tension are more likely culprits than feed ramp issues in my experience. the round wont feed up into the barrel properly. In my typical fashion I did most of my research after I completed my online purchase. Sold Individually. 223/5. Aero Precision EPC barrel Macon Armory guaranteed-to-feed barrel Second choice: Taccom superfeed barrel – Lower feed ramp built into barrel. Legal 16" overall. The Kaw Valley Precision 9mm barrel has an 11-degree target crown designed to give you the best possible accuracy and durability. Hybrid Barrel Ramp: The hybrid barrel ramp is a combination of the standard barrel ramp and fully supported barrel ramp designs. Complete with enhanced feed ramps, this barrel is a must try. Leaving plenty of case head support, I carefully throated and polished the 9MM barrel. Nov 3, 2022 · Ramped barrels take more time and effort to fit than standard barrels. The mags are fine, they are Metalform mags made for brownells, arguably the best 9mm Colt mags. My 9mm Springfield Mix Master A got that recontouring as part of the parts exchange*. Includes Bushing link and Pin. With all of that as background what we're trying to answer here is the question of whether or not ramped barrels in any caliber will feed better than standard configuration barrels. In 45 ACP all of my non ramped 1911's will feed HP and SWC bullets with total reliability. Apr 20, 2023 · The integral feed ramp is commonly found on custom 1911 pistols. The Clark/Para cut is easier to do and usually costs less. 45 than the . Not sure what the angles are, but the distance from the VIS to the top of the feed ramp is less on the . I'm asking about a 45acp barrel with supported chamber and feed ramp similar to the 9mm barrel ramp Thank you, BoomDad Save Reply Quote Like Sort by Jul 3, 2012 · In 9mm and 40 S&W the ramped barrel will provide greater feeding realibility especially with HP bullets. 9x23, 45, 10mm) and I don't recall any instances of case blowouts when using standard pressure cartridges. 9MM Lower Parts Kit HammerHammer SpringSelectorBolt Catch Spring9mm Bolt CatchBolt Catch Roll PinMagazine CatchDetent Spring Feb 19, 2023 · I impulse purchased a Tisas Aviator which is an alloy framed Colt Commander clone. We work with trusted brands to offer shooting and hunting enthusiasts, both amateur and professional, quality products at a reasonable price. 56 lower receiver to 9mm Luger. So, it has been used quite successfully with the standard feed ramp since then in both Full Sized and Mid Sized 1911s. 9mm on an AR15 platform operates by blowback and does not need a gas block or gas tube. 38. I sent it back to CMMG but it still had fairly consistent FTF problems. After building several AR-15 SBRs and rifles, I thought I'd try an AR-9. " I don't have or want a . Jul 13, 2020 · The top picture below is of a fully loaded magazine locked into the magazine well. This fits most all 1911 firearms with or without an integral feed ramp. The design to fix the flawed design of many lowers based off using the Glock 9mm Magazines, our feed ramp is easy to install The feed ramp and magazine interface in this system was improved over Colt. 45 frame I machined a 40 cal feed ramp in the middle of the 45 ramp and then a 38 ramp in the middle of the 40 ramp it bump feeds all flawlessly I have 4 recoil springs, 3 ejectors and with the 5 barrels, can shoot 45acp, 10mm auto, 40 short and weak, 38 super, and 9mm luger. Short Oct 2, 2010 · My Colt 9mm with standard barrel feeds, fires, and functions just fine with no bulging brass or other "pressure signs. The issue hes having is that when ch. Apr 30, 2010 · For my gun set ups, I have found it best that the bullet is closer to the feed ramp, so I use the 9mm mags with the spacer in the back and the long 9mm ejector. If a given feed ramp is a few or several degrees more than that and it causes a malfunction, what specific kind of malfunction is it when the round feeds? How about it the feed ramp is a few or several degrees less than spec? What The proprietary feed ramp was tuned to deliver cartridges perfectly to the centerline of the chamber of the barrel, unlike the original, pre Colt design which may not have involved a capable CAD system. The Multi angle PATENT PENDING extreme feed ramp will help allow the use of hollow point ammunition and support the front of the glock magazine. Jan 28, 2012 · OK; I have a Colt LWT GM . Issues with feed ramps can be more common than many builders think, especially when you’re perhaps mixing and matching parts from different manufacturers. This Adapter Drop In Mag Block converts your standard AR-15 model to accept affordable, lower-penetrating 9 mm rounds using a COLT STYLE MAGAZINE. Jun 1, 2015 · starting with a . Sometime ago, someone posted a pic showing proper 45 acp feed ramp fitting in relation to the frame ramp. Comes with 9mm bolt catch, feed ramp, and ejector installed. When I drop the slide from slide lock on a fully loaded 8 round factory or Wilson Combat 47D/ETM magazine the round slams into the frame feed ramp and hangs up. When properly fitted there is no difference in the shooting but he might be tooled up for one or the other. I did that to my Colt Defender, and it fixed the feeding problem. and it seems it needs a guide to help the round feed up. Needs bolt mod (free) to use upper ramp, some accuracy issues were reported in the past but appear to have The proprietary feed ramp was tuned to deliver cartridges perfectly to the centerline of the chamber of the barrel, unlike the original, pre Colt design which may not have involved a capable CAD system. Jun 11, 2023 · Please educate me or point me to good links on this subject, as I could not find relevant readings online. Feb 9, 2023 · Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. So I modified the ramp to get it as close to 31. Sep 6, 2023 · I had some machine work done by a very prominent 1911 smith that told me he adjust the feed ramp angle in every 9mm ramped Kart barrel he uses. It would require a bit of modification to your Feb 10, 2023 · Faxon Firearms 10. That being said, there are tons of Colt 9mm guns out there with non ramped barrels that do just fine. Grab a 9mm Colt frame and a . These are the same 9mm barrels we use in our 9mm conversions. What is the difference between different AR-15 platform 9mm barrels' feed cones? For example, what makes a 9mm barrel on an AR-15 upper properly chamber from a Glock magazine or Glock-style magwell vs a standard Colt magwell & Colt magazine? What is the difference in sort of cone/frustrum Mar 18, 2024 · Is wear on the aluminum feed ramp an issue? I have really wanted a Colt Lightweight Commander in 45ACP since seeing a relative with one when I was young. The feed ramp has a 3/8" post that fits into a hole in the lower (or magblock) and is held in place with a 1/8" roll pin. Here’s what they are, how they work, and a few fixes to common problems. CMMG has made a small modification to 9mm barrels in order for them to be compatible with Mk9 lower receivers. Combine this dedicated 9mm Lower Receiver with a lower parts kit and buttstock kit to build your favorite lower group. Phone: (605)720-4000 Fax: (605)720-4003 Email: barstoinfo@uia. We’re assuming that the gun hasn’t been “tuned” by Dremel Dan and his ugly, stupid first cousin Bubba. 56mm lower with roll pins to remove excess volume of 5. Available for use with blowback uppers, our "magwell" adapter is designed to work reliably with any Colt pattern 9mm magazine and takes just moments to install in a standard AR-15 lower receiver mil-spec magazine well. I am using Metalform "Springfield" ramp-type magazines (9FR-794B). This pistol almost refused to feed Black Hills Honey Badger ammo, which has worked fine in every other pistol tested. Overall, the key to addressing feeding issues in a 1911 is to ensure that the gap between the frame feed ramp and barrel throat is properly fitted. Bonus if you have a Colt Defender in 9mm and have found a hollowpoint that doesn't catch on the barrel/feed ramp interface. Made in the USA. The . What is it about a ramped barrel that makes it feed a wider array of ammo types more smoothly than non-ramped barrels? Aug 18, 2022 · First choice. Great upgrade parts for your AR-15!Includes magwell adapter with ejector and feed ramp, (2) springs, and Aug 15, 2023 · I recently got a new Colt 1911 in . Any pros and cons with these or it’s just Apr 16, 2020 · The Colt 1911 was not polished at all and showed a very narrow ramp, which proved problematic in some of the ammunition we used for testing. By purchasing CMMG Parts Kit MK9 9mm Colt/Metalfrm from our online store, you are guaranteed to receive a high-quality item. The problem is (at least it appears) that the bolt is hitting the feed ramp and not allowing the bolt to cycle. Mar 3, 2020 · If you have a consistent bullet impact circle size but the circle is displaced on the feed ramp from one magazine to the next, then you have a magazine feed lip width or pointing direction issue. It’s completely stock. 56 lower receiver to 9mm. Colt IIRC uses a non ramped 9mm barrel. 45 auto. TEMPORARY SALE!! SMF Tactical 9mm Builder Kit Includes: Ejector Feed Ramp Bolt Catch Roll Pin (2) 9mm Colt Lower Parts Kit includes all the parts you need to assemble a Colt compatible lower receiver. 45 frame. Aug 15, 2020 · Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. There are also numerous dedicated 9mm upper options that work. What is the difference between different AR-15 platform 9mm barrels' feed cones? For example, what makes a 9mm barrel on an AR-15 upper properly chamber from a Glock magazine or Glock-style magwell vs a standard Colt magwell & Colt magazine? What is the difference in sort of cone/frustrum The feed ramp and magazine interface in this system was improved over Colt. One might think that would make everything a little easier since it was a Colt 9MM kit, designed to use on a Colt . review stating Kaw Valley Precision AR-15 10. I like the dedicated colt build. Jul 6, 2010 · The smoothness of the ramp hardly ever has anything to do with whether or not a gun will feed certain ammo. Oct 4, 2016 · I just finished putting together a Palmetto State dedicated 9mm Colt Lower. I doubt if you will be able to get your gun 100% dependable by removing metal, since you actually need more metal in the feed ramp area to work with, not less. 4oz 9mm buffer Carbine 9mm AR-15 MagWell Adaptor for Colt style magazines. My lower is from Brownell's, a CMMG.