CM15 300BLK 16″ Upper with Options

CM15 300BLK 16″ Upper with Options

16″ Upper with Options

• CM 6061 lightweight billet aluminum receiver
  • Reliefs featured throughout the receiver
  • Picatinny rail milled channel for a sleek/light weight option
• CM 6061 15″ MLOK handguard
  • QD Sockets at 3 and 9 o’clock
  • Full Picatinny top rail
• Choice of Suppressor Host Muzzle Device or Thread Protector
• CM15 Low Mass Bolt Carrier Group
  • 9310 Hardened Steel Bolt
  • 17-4 Stainless Steel Firing Pin
  • 8620 Carrier and Key
  • MPI Tested
  • Hardened Extractor S7 Steel
• CM15 Warhammer Ambidextrous Charging Handle – in collaboration with Breek Arms
• Superlative Arms Adjustable Gas Block
• CM Melonite Gas Tube
• CM15 300 BLK 16″ Barrel
  • CrMV
  • DRP Profile
  • QPQ Corrosion Resistant
  • 1:7 Twist, 5R
  • Pistol Gas
  • .750 Gas Journal
  • 5/8×24 threaded muzzle

CM15 300BLK 16″ Upper: Versatility and Velocity Combined

The CM15 300BLK 16″ Upper is the definitive choice for shooters who want the power of the .30 caliber round in a non-NFA, rifle-length configuration. While the .300 Blackout is famous for its short-barrel performance, this 16-inch version maximizes muzzle velocity and provides a superior sight radius, making it an excellent dual-purpose tool for hunting, home defense, and range day precision.

Ballistic Efficiency

The 16-inch barrel ensures a complete powder burn for supersonic loads, giving you a flatter trajectory and more kinetic energy downrange compared to pistol-length alternatives. It remains remarkably soft-shooting and reliable, utilizing a tuned gas system designed to cycle a wide variety of ammunition—from lightweight supersonic rounds for varmint hunting to heavy subsonics for quiet plinking.

Tailored to Your Mission

With our customizable options, you can build the exact rifle you need. Choose from various handguard styles to mount your favorite optics and accessories, or select a specialized muzzle device to further reduce felt recoil.

Main Features:

• 16″ Premium Barrel: Max velocity for supersonic loads; no tax stamp required.

• Optimum Reliability: Designed to run standard and suppressed setups with ease.

• AR-15 Integration: Drops onto any mil-spec lower; uses standard 5.56 magazines.

The CM15 16″ 300BLK Upper offers the perfect blend of long-range reach and close-quarters authority.