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CMMG, Inc 9mm Barrel and Bolt Carrier Group (BCG) Kit Color: Black, Finish: Salt Bath Nitride, w/ Free Shipping
No, not without modification. Most 9mm lower receivers have the ejector built into the receiver, as standard Glock and Colt compatible 9mm carriers have no ejector. The CMMG bolt has the ejector built into the bolt (similar to a .223 bolt), so it will not work with a lower that has the ejector.
If you're looking into buying this, you know what you're looking at. You're attempting to build a PCC with certain characteristics that a direct blowback gun uses heavy buffers & springs to control. Well, it works! It's lighter than your typical blow...
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I shoot steel matches and have been using the typical blow back 9mm PCC. Once tuned, they work good as long as you keep them clean and don't mess around with the PF too much. To use the CMMG setup I installed the 9mm CMMG upper on my AR15 lower (st...
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I installed this kit in a mil-spec (recommended by cmmg) upper to use with cmmg’s arc-9 mags. A little over 400 round through it so far in various weights and manufacturers including browning 125 round nose, Winchester white box, and 147 Remington. 1...
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I pick up this CMMG both barrel kit to build my AR9. I pick the 8 inch barrel. High quality, the Bolt and bolt carrier group is perfect. They have a spring behind the bolt and a round cam pin. It’s a little different but other than that it is perfec...
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I built the 8" kit into an Aero Precision Receiver/Handguard, Stealth Recoil Spring, and SB PDW brace. Out of 500 rds, we had one failure to eject, but the round sounded weak when fired, so we weren't surprised. No squip, fortunately. The recoil is l...
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Do not do it.
I know what you're thinking "But C3Junkie said this would be the best set up for my AR9" Yep. We all read those posts. Feel free to trust him like I did, after all, I'm just some random reviewer, but let me tell you what is going to ha...
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Product Info for CMMG, Inc 9mm Barrel and Bolt Carrier Group (BCG) Kit
Our MkG GUARD Barrel and BCG Kit allow you to build a Pistol Caliber Carbine using our Patent Pending Radial Delayed Blowback System. Unlike typical direct blowback systems, our RDB uses a bolt that is forced to rotate and unlock, slowing the BCG. This results in a lighter BCG for a lighter rifle, and less felt recoil than a straight blowback system.
Our MkGs Barrel and Bolt Kits are designed to work exclusively with our MkGs Lowers. Other manufacturers lowers may work, but we cannot guarantee function or reliability. Buy a new 9mm AR barrel today!
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