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Mfg Item #: 99DE642
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Firearms must be shipped to a licensed firearms dealer (FFL holder) and are subject to a background check prior to collection. NFA items require additional screening, as well as standard background checks. Please contact your designated FFL prior to purchasing any NFA item(s) to ensure that they are eligible to accept an NFA transfer.
CMMG's 9mm Barrel and BCG Kit allow you to build a Pistol Caliber Carbine using CMMG's Patent Pending Radial Delayed Blowback System. Unlike typical direct blowback systems, 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. Their Barrel and Bolt Kits are designed to work exclusively with mil-spec AR-15 upper receivers with a modified ejection port, like their MkG/MkGs upper, and most mil-spec AR15 lowers when used with 9 AR Conversion mags as well as their MkGs Mk17 and Mk9* lowers. Other manufacturers receivers may work, but we cannot guarantee function or reliability.*Older Mk9 lowers will require one of their retrofit kits to convert it to a Radial Delayed Blowback compatible lower, instead of Traditional Blowback.
| Model | Replacement Barrel |
|---|---|
| Twist | 1:10" |
| Finish | Salt Bath Nitride |
| Length | 16.10" |
| Series | Kit |