CM15 5.56 NATO 16″ Upper with Options

CM15 5.56 NATO 16″ Upper

• 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 5.56 NATO 16″ Barrel
  • CrMV
  • Government Profile
  • QPQ Corrosion Resistant
  • 1:7 Twist
  • Midlength Gas
  • .750 Gas Journal
  • 1/2×28 threaded muzzle

CM15 5.56 NATO 16″ Upper: The Definitive All-Purpose Platform

The CM15 5.56 NATO 16″ Upper is the quintessential choice for any AR-15 owner, offering the perfect balance of ballistic performance, reliability, and legality. As the “standard” rifle length, this 16-inch configuration provides maximum versatility for everything from competitive shooting and home defense to weekend range sessions, all without the need for additional NFA paperwork.

Balanced Ballistics & Reliability

Chambered in 5.56 NATO, this upper is designed to safely and accurately fire both mil-spec 5.56 and .223 Remington ammunition. The 16-inch barrel length is widely considered the “sweet spot” for the AR platform, offering a complete powder burn that maximizes muzzle velocity and ensures a flatter trajectory at longer distances. Utilizing a mid-length or carbine-length gas system, the CM15 is tuned for a smoother recoil impulse and reduced wear on internal components, ensuring your rifle runs reliably for thousands of rounds.

Tailored to Your Shooting Style

With our customizable options, the CM15 16″ Upper is a blank canvas for your perfect build. Whether you need a full-length M-LOK handguard for mounting modern optics and bipods or a high-performance Bolt Carrier Group (BCG) for mission-critical reliability, you can configure this upper to meet your specific needs.

Core Features:

• 16″ 4150 CMV Barrel: Nitride finished for superior durability and bore life.

• Caliber: 5.56 NATO (Multi-cal compatible with .223 Rem).

• M4 Feed Ramps: Precision-machined for consistent, jam-free feeding.

• Universal Compatibility: Fits any standard mil-spec AR-15 lower receiver.

The CM15 16″ 5.56 Upper is the reliable, high-performance workhorse that belongs in every enthusiast’s collection.