CMMG Resolute MK4 300 Blackout 16.1" Rifle

CMMG Resolute MK4: Purpose-Built for Modern Shooting

The CMMG Resolute MK4 in 300 Blackout represents a thoughtful approach to modern rifle design. This caliber was originally developed for suppressed shooting with subsonic ammunition, making it ideal for home defense and tactical applications where noise reduction matters.

Design Philosophy

The 300 Blackout cartridge maximizes compatibility with standard AR-15 components and ammunition sources, reducing complexity and cost. The 16.1" barrel length provides excellent velocity for subsonic loads while maintaining a compact, maneuverable platform.

Features and Controls

Ergonomic Design:

• Full ambidextrous controls for left and right-handed shooters
• Ambi safety lever (60/90 degree throw)
• Ambi magazine catch and extended mag release button
• Ambi charging handle for intuitive operation

Handguard and Rail System:

• EML handguard with full-length M-LOK slots on both sides and bottom
• M-LOK sections between top Picatinny rail sections
• Abundant mounting options for lights, lasers, and accessories

Quality Components:

• ZEROED drop-in trigger for reliable ignition
• AR-15 compatible bolt catch
• Polymer dust cover
• Muzzle brake for recoil management

What's Included

Each rifle ships with a Magpul 30-round PMAG, giving you immediate shooting capability. The 300 Blackout platform accepts standard AR-15 magazines and parts, making upgrades and customization straightforward.

Ideal Applications

Whether you're interested in suppressed shooting, home defense, or exploring modern rifle capabilities, the Resolute MK4 delivers reliable performance in a compact package.