CMMG 55B8D86AB Dissent MK4 5.56 NATO 10.5" Rifle

The CMMG 55B8D86AB Dissent MK4 5.56 NATO 10.5" Rifle is purpose-built for operators and civilians demanding a compact, duty-ready platform without compromising on performance or reliability. This short-barreled rifle (SBR) excels in close-quarters environments—vehicle operations, home defense, and tactical training—where maneuverability is essential. It is important to note that this rifle requires a tax stamp and Form 1 or Form 4 for legal ownership.

The 10.5-inch barrel optimizes velocity and handling balance while maintaining the 5.56 NATO's intermediate-range terminal performance—critical for CQB scenarios where overpenetration liability and collateral damage must be managed. At 5.21 lbs unloaded, this rifle cycles fast enough for rapid target transitions and responds predictably to suppressors and compensators, thanks to CMMG's optimized gas system tuning. The Dissent MK4 platform integrates mil-spec Picatinny rails for optics and accessories, enhancing its versatility.

Tactical professionals, home defenders, and serious shooters building a specialized rifle for confined-space work will find the Dissent MK4 5.56 NATO 10.5" platform delivers the performance needed for demanding applications. Its design supports both suppressed and unsuppressed fire without reliability loss, making it suitable for various operational requirements. This rifle is an excellent choice for those seeking a reliable and adaptable firearm.