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Mfg Item #: 99D517A
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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.
| Width | 1.9500 |
|---|---|
| Finish | BLACK MATTE |
| Height | 1.8500 |
| Length | 17.2500 |
| Sights | N |
| Caliber | 9MM LUGER |
| Threaded | Y |
| Dimension | 1.85 X 1.95 X 17.25 |
| Ar15 Accessory | Y |
| Other Features | MEDIUM TAPER, 1:10 TWIST, 4140 CHROME MOLY, SALT BATH NITRIDE FINISH, THREADED 1/2X28" |
| Other Features2 | RADIAL DELAYED BLOWBACK BOLT, REQUIRES ENLARGED EJECTION PORT FOR RELIABLE OPERATION, INCLUDES BOLT AND BARREL |
| Length In Inches | 8.0000 |