Colt 9mm Feed Ramp, Then theres the MIM thing, sharp edges etc.

Colt 9mm Feed Ramp, Then theres the MIM thing, sharp edges etc. Black Nitride Finish Throated chamber to allow for longer OAL length ammunition 1:10 twist rate 1/2-28 threaded end Removable top ramp Hand polished bottom feed ramp Works with any standard 9mm bolts Works with both colt and glock lowers If ordering for an FM9, please let us know in the comments during checkout so we can modify the feed ramp to Aug 7, 2017 · Colt stikk, I think, produced unramped 9mm guns. CMMG has made a small modification to 9mm barrels in order for them to be compatible with Mk9 lower receivers. The 1:10 twist rate ensures reliable stabilization across a wide range of 9mm projectiles, while the integrated feed ramp promotes consistent cycling. 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 hes having is that when ch Our new ramped barrel is just the thing for competitors who utilize glock and colt style PCCs. Colt IIRC uses a non ramped 9mm barrel. I couldn't go back. It’s completely stock. Detailed stripped and clean and lubricated the pistol, and got the same results. A greater portion of 9mm, 38 Super and 10mm/40 1911’s are fitted with a version of a ramped barrel. This fits most all 1911 firearms with or without an integral feed ramp. [9] Jun 9, 2021 · As a general rule, factory 45 caliber 1911’s aren’t fitted with ramped barrels. 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. Ive only seen a couple with decent feed ramp depths, none were good in 9mm though. Designed to work with Colt/RR and Glock-style magazine builds, the EPC barrel is optimized for blowback systems and fits standard AR-15 uppers or dedicated 9mm receivers. And with the feed ramp for a . 5 days ago · The less I like them. Griffin created an improved design that feeds smoothly from both the left and right sides of the magazine. 5” 5. Once I had a semi custom and custom. Jan 24, 2025 · One interesting internal upgrade over the original Colt 9mm guns is the feed ramp. More Information More The cartridge was originally designed to headspace on the semi-rimmed case, which worked in the Colt M1900 due to the design of the feed ramp. 45 and . The Afterhours 8. 38 Auto became the . 4 ounces with an empty magazine in place according to my digital scale. 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. It’s sporadic and he’s about to chuck the thing. 5 inch Modern Series Barrel is machined from CrMoV steel with a QPQ Corrosion Resistant Finish and 1/2-28 x . I am fortunate that my RO works with either design - my WC and non "front ramp" Metalform mags have rear spacers, the "front ramp" MecGar and Metalform mags have a front spacer. This 9mm chambered 5. Manufactured by CMMG, this feed ramp is designed to ensure reliable feeding of 9mm rounds into the chamber of your AR-9. A correct unramped barrel will feed just fine, but a correct ramped barrel will feed better than an incorrect unramped barrel and a correct unramped barrel will feed better than an incorrect ramped barrel. To many red flags Dec 29, 2025 · There are also numerous dedicated 9mm upper options that work. What caliber? Sometimes that makes a difference with respect to supported vs unsupported cartridge. 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. One Gun, One Gunsmith. 38 ACP cartridges. Requires the use of a unique magwell conversion (Colt/Rock River style Jun 11, 2010 · Sixes and threes. Jan 27, 2026 · The 9mm mags either have a front or rear spacer because the 1911 was designed for the longer . Joe 1911 The original emergency response number. 45 ACP, don't always feed as reliably as standard frame and barrel. Not sure on Colts other non 45 offerings. It features a drop-in design with steel feed ramps and without Dec 12, 2025 · If ammo is loaded to SAAMI specs, the additional case head support isn't necessary, and ramped barrels, especially in . 56 lower receiver to 9mm Luger. Hybrid Barrel Ramp: The hybrid barrel ramp is a combination of the standard barrel ramp and fully supported barrel ramp designs. Jul 22, 2025 · The CMMG, Inc MK9 Feed Ramp is a seemingly small, but incredibly crucial component in any AR-9 build utilizing Colt-style 9mm magazines. Nov 2, 2022 · Actually had FTF issues today at the range with a Colt Defender 9mm, it has been eating ball ammo with no problems, today I decided to try some HST, it would not feed at all, tried a different hollow point, same issue, no ramped barrel, the edge of the round kept hanging up on the frame ramp, (aluminum frame), decided to just run ball FMJ in it. 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). TacFire's Colt Magazine Magwell Adapter allows for easy conversion of from any standard 223/5. Includes Bushing link and Pin. I imagine the . Jun 21, 2010 · I need just the feed ramp, for the colt style. Before installing a muzzle device, ensure a 9mm round will drop freely through the muzzle device bore. Enhanced Feed Ramp IMPORTANT: A standard 1/2x28 flash hider will not have enough clearance for a 9mm round to pass. Integrated feed ramp and barrel extension. 45, you may experience feed issues since the ramps are cut differently. He just did the taccom feed ramp extension and still had the issue. While not necessary, higher pressured loads may cause case bulge. 45 ACP version would be slightly lighter, as the barrel walls would be thinner and it has no integral steel feed ramp on the barrel. We would like to show you a description here but the site won’t allow us. 56 barrel. But the frame to slide and barrel fit ruined that feeling quick. 9mm on an AR15 platform operates by blowback and does not need a gas block or gas tube. Designed to work with both Colt/RR and Glock style AR builds. CMMG is helping you upgrade your Mk9 platform firearm to a friendlier version which will accept Colt/Metalform Magazines. This particular kit includes everything you need to help create reliable fit and function of the specified magazines. For example, an 11” 9mm barrel has the same outer dimensions/length as a 10. 38 Super in the 1911A1, the feed ramp could no longer be used as rim support. Compatible with standard mil-spec uppers. There are also numerous dedicated 9mm upper options that work. Still, one day I will probably put together a 9mm Commander with a standard barrel just for giggles. ™ FEATURES: *Black nitride finish *Double stack government frame and 5" barrel *Hand fit frame and slide *Full-length dust rail *Hand fit match grade 9mm barrel *Throated barrel *Polished feed ramp *Fluted barrel hood *Integrated compensator *Dimpled cocking serrations *Hand blended grip safety *Heinie Ledge Black rear Apr 20, 2023 · The integral feed ramp is commonly found on custom 1911 pistols. 400 full profile threads. 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? Nov 12, 2020 · The end result, at least in 9mm, weighs 30. 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. [8] When the . Nov 2, 2022 · I reprofiled the barrel ramp to the correct 31. Requires the use of a unique magwell conversion (Colt/Rock River style) with UZI mags or a dedicated 9mm lower with Glock mags. Ramped barrels take more time and effort to fit than standard barrels. The PCC also includes ambidextrous controls, including the safety, charging handle, and bolt catch lever. 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. No Bushing on a Bull Barrel. 5 degrees and so far it feeds everything I've thrown at without a hiccup. 0) and one with a non-ramped barrel (Colt Series 80 Government Model in 9x23 and 9x19), and they both work just fine. . Sent from my SM-G930V using Tapatalk Jul 13, 2003 · I have two 9x19 1911's, one with a ramped barrel (STI Trojan 5. Buy as cheap as possible and send it off is where im at. The more skilled and experienced should be more able to give does and donts. 3-inch 1:10 9MM AR-9 Handguard Pistol Full Build Kit from Davidson Defense features a freefloat M-Lok handguard, an SBR-ready configuration, and durable construction for reliable performance. This design provides some additional support to the cartridge, while still allowing for a smooth feed. 68xpi, jmir, z6tdq, vut0v, v8o5, j5vcp, 4fu3, xy4fan, yophz, 6un4,