CM15 458 SOCOM 16″ Upper with Options

CM15 458 SOCOM AR15 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
• Tank Brake
• 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 458 SOCOM 16″ Barrel
  • CrMV
  • HBAR Profile
  • Black Cerakote
  • 1:14 Twist
  • Carbine Gas
  • .936 Gas Journal
  • 5/8×32 threaded muzzle

CM15 458 SOCOM AR15 Upper: The Ultimate Big-Bore Rifle

Take command of the field with the CM15 458 SOCOM 16″ Upper. Designed to deliver staggering kinetic energy without the need for an NFA tax stamp, this 16-inch configuration is the premier choice for hunters and shooters who want the maximum effective range and velocity that the .458 SOCOM cartridge can offer.

Unmatched Terminal Ballistics

The .458 SOCOM was engineered for pure stopping power, and the 16-inch barrel allows you to fully harness that potential. This length provides a more complete powder burn for supersonic loads, resulting in higher muzzle velocities and a flatter trajectory compared to pistol-length uppers. Whether you are tracking trophy hogs through dense timber or protecting your property from large predators, the CM15 16″ ensures that every shot carries the “thump” required for a clean, decisive impact.

Rugged Reliability & Customization

Built on a forged 7075-T6 aluminum receiver, this upper features a professionally enlarged ejection port to ensure the massive .458 brass cycles flawlessly. With our customizable options, you can tailor the build to your specific mission. Choose from various M-LOK handguards for superior accessory mounting, high-performance Bolt Carrier Groups (BCGs), and specialized muzzle brakes to significantly reduce felt recoil.

Key Features:

• 16″ Heavy Barrel: 4150 CMV steel for match-grade durability and heat dissipation.

• 458 SOCOM Caliber: Massive .45 caliber projectiles in a standard AR-15 footprint.

• AR-15 Integration: Drops onto any mil-spec lower; utilizes standard 5.56 magazines (single-stack).

• Flexible Options: Custom-build your rail, BCG, and charging handle.

The CM15 16″ 458 SOCOM Upper is the perfect blend of long-range stability and devastating authority.