CMMG Radial Delayed Blowback .45 ACP BCG and 5" Barrel ComboCMMG's patented Delayed Blowback 45 ACP system substantially reduces recoil compared to standard blowback .45 ACP builds.
Now you can build your own CMMG Delayed Blowback SBR 45 ACP rifle or pistol.
Our MkG 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.
- 5″ Medium Taper
- 1:16 Twist
- 4140 Chrome Moly
- Salt Bath Nitride Finish inside and out
- .45acp Chamber
- Threaded .578-28
- Radial Delayed Blowback Bolt (Patent Pending)
- Requires enlarged ejection port for reliable operation.
- Weight: 1.3lbs
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.