AR-15 .450 Bushmaster 16" Stainless Upper Assembly / Afterburner / Mlok | Big Bore Performance

.450 Bushmaster

AR-15 .450 Bushmaster 16" Stainless Upper Assembly / Afterburner / Mlok

The AR-15 .450 Bushmaster 16" Stainless Upper Assembly / Afterburner / Mlok is the perfect upgrade for any AR-15 lower that’s ready to handle big-caliber performance. Designed specifically for the .450 Bushmaster round, this upper assembly ensures that your rifle delivers impressive power and accuracy for both tactical use and hunting. When paired with a 4.3 heavy buffer, this upper maximizes the firearm's performance, offering optimal recoil control and smooth cycling for such a powerful round.

Key Features:

• 16" 416R Stainless Steel Barrel: Non-fluted, button rifled with a 1:24 RH twist for optimal performance with .450 Bushmaster rounds. The .875" under gas block diameter ensures sturdy, consistent performance.

• Threaded 5/8x32: Muzzle threads that are finished off with a Big Bore Linear Muzzle Brake in hardened steel to reduce recoil and enhance shooting comfort.

• SOCOM Flat Top Upper Receiver: Made from 7075-T6 aluminum for strength and durability, this receiver is black hardcoat anodized to Gov. Specs and comes with Forward Assist and Dust Cover pre-installed.

• .875" Low Profile Gas Block: Steel nitride-coated for enhanced durability. Paired with a carbine-length gas tube, this gas system ensures smooth and reliable cycling.

• 15" MLOK Free Float Handguard: Offers plenty of room for accessories and customization, crafted from aircraft-quality aluminum, black anodized for strength and durability.

Important Notes:

• Does not include BCG or Charging Handle, but both are available for purchase separately.

• Images may not be an exact representation of the product, as minor design changes may occur due to stock availability. However, quality and performance will remain consistent.