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CMMG

CMMG 99D517A Replacement Barrel Kit with Bolt Carrier Group, 9mm Luger 8" Threaded, Black, Radial Delayed Blowback, Fits AR-Platform

Product Code : 815835019802

$448.99
25 left in stock

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.

Width1.9500
FinishBLACK MATTE
Height1.8500
Length17.2500
SightsN
Caliber9MM LUGER
ThreadedY
Dimension1.85 X 1.95 X 17.25
Ar15 AccessoryY
Other FeaturesMEDIUM TAPER, 1:10 TWIST, 4140 CHROME MOLY, SALT BATH NITRIDE FINISH, THREADED 1/2X28"
Other Features2RADIAL DELAYED BLOWBACK BOLT, REQUIRES ENLARGED EJECTION PORT FOR RELIABLE OPERATION, INCLUDES BOLT AND BARREL
Length In Inches8.0000

Determined at checkout.