CMMG DISSENT MK4 556 5.56 NATO 16.1" Modular design Rifle

The CMMG DISSENT MK4 556 5.56 NATO 16.1" rifle represents a modern evolution in modular rifle design, engineered for operators who demand versatility without compromise. Built on proven AR-platform architecture, this 5.56 NATO platform delivers the reliability required by law enforcement, military, and professional shooters in dynamic environments. The 16.1-inch barrel length strikes the optimal balance between velocity, handling, and portability—ideal for close-quarters work, tactical operations, and standard duty applications where compact maneuverability matters.

CMMG's modular design philosophy drives the DISSENT MK4's core functionality, allowing rapid reconfiguration for mission-specific requirements without specialized tools or gunsmithing expertise. The 16.1-inch profile generates sufficient muzzle velocity for 5.56 NATO's effective range while keeping overall length and weight (11.4 lbs) manageable in confined spaces. The modular construction enables barrel swaps, rail customization, and accessory integration to match evolving operational needs—a critical advantage in training environments and multi-scenario deployments where one rifle must adapt to varied tactical demands.

This rifle serves law enforcement SWAT units, military trainers, and civilian tactical practitioners who prioritize platform flexibility and proven reliability. The modular design accommodates industry-standard AR-15 components, ensuring compatibility with existing optics, suppressors, lighting systems, and magazine ecosystems. Installation of aftermarket parts requires standard AR-platform familiarity; all major tactical accessories mount directly without additional adapters, making the DISSENT MK4 an immediate deployment choice for units standardizing on 5.56 NATO infrastructure.