Do you want a modern-day “Grease Gun” .45 ACP carbine (semi-auto, of course) that is based off the AR and feeds from Glock magazines? Then CMMG has you covered with the new MkG45 Guard series.
Released at the 2017 NRA Show in Atlanta, Georgia, the Guard (which is offered in five different configurations) employs a patent-pending “Radial Delayed Blowback” system and feeds from .45 ACP-sized Glock magazines. CMMG tested out traditional straight blowback systems as well direct gas impingement systems, but issues with reliability sent them back to the drawing the board.
What resulted was the Radial Delayed Blowback System that interestingly employs a rotating bolt that requires the force of recoil to rotate and unlock, keeping the action closed long enough to allow chamber pressure to drop to safe levels. The result is a blowback system that does not require a heavy and large bolt carrier system (reminiscent of the HK-style roller-locked systems) and offers a lighter carbine with reduced recoil. The best of both worlds, huh?
Each Guard comes with one 13-round factory Glock 21 magazine, and bolt weight kits will be offered that allow shooters to fine-tune the system for use with +P ammo or with a suppressor.
The MkG45 GUARD comes with one 13-round factory Glock 21 magazine. For optimal reliability, CMMG recommends using factory double-stack GLOCK .45 ACP magazines. Bolt weight kits will be sold separately for those who wish to fine-tune the GUARD for +P ammunition or suppressor usage. The Guard is offered in carbine, SBR and pistol variants.
Keep an eye out for a full review in the coming weeks.
For more information, visit https://www.cmmginc.com/product-category/rifles/45-acp/.