What's the deal with Radial Delayed Blowback?

The CMMG Banshee MKGS in 9mm offers a soft-shooting experience due to its radial delayed blowback system, outperforming previous generations. It accepts Glock magazines, enhancing versatility. However, significant reliability issues were encountered with the bolt failing to strip rounds from the magazine when using the bolt release, particularly during rapid fire. Extended range accuracy up to 200 yards was impressive for a PCC.

This review showcases the CMMG Banshee Mk4 9mm configured as a Mk18 MOD1. The shooter demonstrates its maneuverability and the effectiveness of the 9mm Radial Delayed Blowback system during dynamic drills. Key features include an EOTech sight for rapid acquisition and a tactical setup for efficient engagement.

The Springfield Saint Victor 9mm PCC offers a surprisingly fun and high-quality shooting experience, challenging initial skepticism about PCCs. Its clean aesthetics, featuring a handguard without a top rail and a recessed muzzle device, contribute to a cohesive look. The rifle boasts a crisp nickel boron flat-face trigger and a comfortable, slim profile with preferred B5 Systems furniture, making it a practical and enjoyable option.

The CMMG Dissent PDW in 9mm utilizes a buffer-less, internal recoil system housed in the upper receiver, allowing for compact designs and folding stocks. It offers versatile magazine compatibility, including Glock and P320, via conversion inserts or dedicated lowers. The fast cycling action can lead to trigger slap, which may necessitate a stiffer trigger for defensive applications.

This video analyzes the Bear Creek Arsenal (BCA) bufferless 9mm PCC upper receiver. It highlights the 4.5" M4 barrel with a 1:10 twist, parkerized finish, and blowback gas system. The review also covers the 4" MLOK rail, M4 flat-top billet upper receiver, BCA BCG, flash hider, and the patent-pending Gen 2 side-charging handle, noting its compatibility with mil-spec AR-9 bufferless lowers. Bear Creek Arsenal's in-house manufacturing in Sanford, NC, and their lifetime warranty are also mentioned, emphasizing American-made quality.

The KE Arms KP-9 is a polymer 9mm lower receiver designed for Glock magazines, building on the KP-15 platform. It features an adjustable ejector doubling as a mag stop and requires specific 9mm blowback bolts compatible with slim, single-feed Glock magazines. While generally compatible with blowback uppers, modifications may be needed for certain systems like CMMG's.

The CMMG Mk47, a hybrid AR-15/AK-47 platform, requires the AK 'rock and lock' manual of arms for magazine insertion, not the AR-15 straight-up method. Incorrect insertion leads to a 'mag-locked' state, preventing reliable feeding. Testing confirms this method works with various AK-pattern magazines, including Magpul, US Palm, and XTech Tactical.

The CMMG P3 screw, or Personal Position Preset, allows users to set a specific stop point for their rifle's stock or brace. It's stored in the Zeroed grip and installed into the Fastback receiver extension using a 7/64" hex wrench. Adjusting the RipStock requires a 1/8" hex wrench, while the RipBrace uses its adjustment lever to clear the P3 screw.

This video highlights essential AR-15 accessories, prioritizing optics and triggers for improved performance. It also covers practical additions like slings, charging handles, and foregrips. The presenter emphasizes that foundational essentials like ammunition and training are paramount, even above hardware upgrades.

This video provides a comprehensive overview of the CMMG .22LR conversion kit for AR-15 platforms. It details the benefits of cost savings and reduced recoil for training, explains the installation process, and highlights important compatibility distinctions, especially for Mk57 uppers. The review also covers operational nuances like the bolt hold-open feature.