CMMG Radial Delayed Blowback 9MM BCG and 8" Barrel Combo



Now you can build your own CMMG Delayed Blowback SBR rifle or pistol. You can even use a standard AR lower receiver with these PMAG to 9MM Conversion Adapters (see link below)



CLICK HERE FOR CMMG PMAG To 9MM Conversion Adapter



Our MkGs 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. CMMG's patented Delayed Blowback 9MM system substantially reduces recoil compared to standard blowback 9mm builds.Now you can build your own CMMG Delayed Blowback SBR rifle or pistol. You can even use a standard AR lower receiver with these PMAG to 9MM Conversion Adapters (see link below)Our MkGs 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.





8″ Medium Taper

1:10 Twist

4140 Chrome Moly

Salt Bath Nitride Finish inside and out

9×19 NATO Chamber

Threaded 1/2-28

Radial Delayed Blowback Bolt (Patent Pending)

Requires enlarged ejection port for reliable operation.

Weight: 1.7lbs



All NFA/ATF Rules Apply

Depending on your state and local laws, you could use this barrel with a lower receiver that is a Registered SBR, or Pistol. Possession of this barrel along with a Non-NFA lower receiver may be Prohibited. We are not lawyers and the above information is not legal advise. Make sure you understand the most up to date federal, state and local laws before proceeding with this product.