CMMG Resolute MK4 300 Blackout Complete Upper, 16.1"

CMMG Resolute MK4 300 Blackout Complete Upper

The CMMG Resolute MK4 represents a thoughtful approach to modern rifle modularity. This complete upper assembly arrives ready to function—simply mate it to your compatible lower receiver and you're prepared for duty.

Key Features

• Caliber: 300 Blackout—a cartridge that delivers substantial energy in a compact package
• Barrel Length: 16.1 inches, optimized for both subsonic and supersonic ammunition
• Complete Assembly: Includes barrel, bolt carrier group, charging handle, and handguard
• Manufacturer: CMMG, known for quality modular rifle systems

Why This Upper Matters

The 300 Blackout cartridge has earned respect among serious shooters for its versatility. In a 16.1" barrel, it performs admirably with both standard and subsonic loads. The Resolute MK4 platform gives you a modern, reliable foundation for hunting, home defense, or recreational shooting.

This complete upper eliminates guesswork—all components are engineered to work together. Whether you're building your first rifle or adding to an existing collection, the modular design offers flexibility without compromise.

What You Get

A fully assembled upper receiver group ready for immediate use. Quality construction and proven CMMG reliability in a package that respects both your time and your budget.