New for 2021: CMMG Mk9 Radial Delayed Blowback

by
posted on March 18, 2021
cmmg-inc-mk9-pistol-caliber-carbine-radial-delayed-f.jpg
CMMG built its business by offering quality, dependable pistol-caliber carbines, and the company has now come full-circle by updating its oldest model, the Mk9, with the revolutionary Radial Delayed Blowback operating system.

Traditionally, pistol-caliber carbines have incorporated a direct-blowback operating system. While this offers a simple, trouble-free mechanism, blowback operation as applied to 9 mm and other larger calibers comes with a host of assorted issues. Bolts have to be heavier to prevent early opening of the breech, which makes these PCCs heavier, and when the action begins reciprocating, that heavy bolt contributes to greater felt recoil and increased wear in the firearm.

CMMG's Radial Delayed Blowback operating system offered a new way to safely operate a pistol-caliber platform while eliminating some of the drawbacks found in a simple direct-blowback action. The bolt on CMMG's system angular locking lugs that prevent the bolt from unlocking until chamber pressures drop to a safe level. This system still operates on the principle of direct pressure applied from the chamber rather than a gas system, but the locking lugs and delayed opening allows for the use of a lighter bolt, thereby lightening the gun and reducing felt recoil.

CMMG's Mk9 pistol-caliber platform is the latest design in the company's lineup to incorporate the Radial Delayed Blowback system. These Mk9 platforms are available in Banshee and Resolute options. The Banshee is outfitted as a non-NFA pistol or a short-barreled rifle with barrel lengths of 5" or 8", while the Resolute is offered as a carbine with a 16" barrel. Both guns are designed to feed from Colt SMG-pattern 9 mm magazines and feature last-round bolt hold-open.

Suggested retail pricing on the guns start at $1,099.95. For more information, visit cmmg.com.

Latest

Gotw Beretta 92Xi Squalo Web
Gotw Beretta 92Xi Squalo Web

Gun Of The Week: Beretta USA 92XI Squalo

Join American Rifleman staff in this week's video to learn about a new version of the famed Beretta 92, a line extension that offers up single-action-only operation, optic-ready capability and more.

The Armed Citizen® July 26, 2024

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Retro Review: The Smith & Wesson Model 5946

The Model 5946 duty pistol faithfully served police forces nationwide until it was pulled from production just before the turn of the millennium. Now, lots of these trade-in duty guns are available to commercial sales through distributors such as Aim Surplus, LLC.

NRA Leading The Way In Range Development Education

From its Range Development and Operations Online Course to Range Conferences, the National Rifle Association is leading the charge to educate potential and current range owners and operators with range development information, environmental issues, safety and more.

Rifleman Review: Colt Gold Cup National Match M1911

Colt is the brand that's traditionally associated with the M1911, and in this Rifleman Review, we look at how they're paying homage to the classic design with the Gold Cup National Match model.

New For 2024: Springfield Armory 1911 DS Prodigy Coyote Brown

Springfield Armory now offers several models of its 1911 DS Prodigy with a coyote-brown finish.

Interests



Get the best of American Rifleman delivered to your inbox.