AR-15 .450 Bushmaster 18" Steel Black Nitride Upper Assembly / MLOK | Big Bore Performance

.450 Bushmaster

AR-15 .450 Bushmaster 18" Steel Black Nitride Upper Assembly / MLOK | Big Bore Performance

The AR-15 .450 Bushmaster 18" Steel Black Nitride Upper Assembly / MLOK is the perfect choice for those seeking big-bore power and reliability in their AR-15 platform. Featuring a robust 4150 CMV steel barrel with a black nitride finish, this upper assembly is engineered for exceptional performance with .450 Bushmaster ammunition. Its mid-length gas system, paired with a 15" MLOK free float handguard, provides ultimate accuracy and recoil management, making it a perfect addition for long-range shooters or hunting enthusiasts.

Assembly Features:

• Barrel:

  • Material: 4150CMV Steel, Black Nitride Finish for corrosion resistance and durability
  • Length: 18" for optimal balance and range
  • Profile: Heavy barrel (HBAR) for improved rigidity
  • Twist Rate: 1:24" RH twist for stability with larger projectiles
  • Chamber: .450 Bushmaster for big-bore hunting and target shooting
  • Button Rifled for precision and accuracy
  • Gas Block Diameter: .936" for better gas flow
  • Threaded Muzzle: 5/8x32 for compatibility with muzzle devices
  • Gas System: Mid-length gas system for smooth cycling and recoil management
  • Muzzle Device: Linear Compensator in black, hardened steel construction for recoil reduction and noise mitigation

• Upper Receiver:

  • Material: Certified 7075-T6 Aluminum Forging for strength and durability
  • Finish: Black Hardcoat Anodized to MIL-SPEC
  • Design: A3 Flat Top Upper Receiver for optimal optics mounting
  • Features: Forward Assist and Dust Cover installed
  • Style: SOCOM style designed specifically for large-caliber rifles

• Gas System:

  • Gas Block: .936 Low Profile Gas Block made from Aircraft-Quality Steel, Black Hardcoat Anodized
  • Gas Tube: Mid-Length Stainless Steel Gas Tube for reliable cycling

• Handguards:

  • Length: 15" Rifle-Length MLOK Free Float Rail for customization and lightweight feel
  • Material: Aircraft-Quality Aluminum, Black Hardcoat Anodized for durability and performance

Important Notes:

• Does not include BCG and Charging Handle. These can be purchased separately.
• Images may not be an exact representation of the product; variations may exist due to stock availability. The quality and performance will remain consistent with the listed specifications.