AR-15 .450 Bushmaster 16" Steel Black Nitride Upper Assembly, Tanker Brake, M-LOK

.450 Bushmaster

AR-15 .450 Bushmaster 16" Steel Black Nitride Upper Assembly, Tanker Muzzle Brake, M-LOK Handguard

The AR-15 .450 Bushmaster 16" Steel Black Nitride Upper Assembly is a powerful and durable upgrade for your AR-15 platform. Designed for big bore calibers, this upper assembly features a 16" 4150CMV steel barrel with a black nitride finish for maximum durability and corrosion resistance. Chambered in .450 Bushmaster, it has a 1:24 RH twist and .875 under gas block diameter, making it perfect for high-performance hunting and tactical applications.

The carbine-length gas system ensures reliable cycling, and the tanker muzzle brake in hardened steel minimizes recoil and muzzle rise. The 15" M-LOK free float handguard offers excellent modularity and a slim profile, while the A3 flat top upper receiver is constructed from 7075-T6 aluminum forgings for superior strength and precision.

This upper assembly is compatible with most mil-spec AR-15 lower assemblies and includes a Socom-style design tailored for big bore calibers.

Key Features:

• 16" 4150CMV Steel Barrel with black nitride finish for enhanced durability

• Chambered in .450 Bushmaster with 1:24 RH Twist for optimized accuracy

• .875 Diameter Under Gas Block with carbine-length gas system

• Tanker Muzzle Brake in hardened steel for recoil reduction

• A3 Flat Top Upper Receiver made from 7075-T6 aluminum and black hardcoat anodized

• 15" M-LOK Free Float Handguard for modularity and a slim profile

• Socom-style upper receiver for big bore calibers

• Forward assist and dust cover installed for added functionality

Note: The upper does not include BCG or Charging Handle. These items can be purchased separately. Images may not be an exact representation of the product.