Elevate your AR-15 pistol with the .450 Bushmaster 10.5" Thumper Pistol Upper Assembly, designed for superior power and accuracy. The .450 Bushmaster round delivers impressive stopping power and energy, making it ideal for both tactical applications and big-game hunting. Add this upper to your AR-15 pistol lower receiver for a game-changing experience at the range or in the field.
Barrel Length: 10.5" heavy-profile barrel chambered in .450 Bushmaster for optimal performance and power.
Gas System: Carbine-length gas system for reliable cycling with .750 low profile gas block.
Barrel Profile: Medium profile for a balance between strength and weight, with 1:24 RH twist for improved bullet stabilization.
Barrel Steel: 4150CMV steel treated with black nitride finish for durability and corrosion resistance.
Muzzle Device: Nitride Linear Compensator in hardened steel to reduce recoil and muzzle rise, enhancing accuracy and shooting comfort.
Receiver Material: Crafted from 7075-T6 aluminum forgings, with black hardcoat anodizing to MIL-SPEC standards for rugged durability.
Handguard: 10" Slim Profile MLOK Free Float Rail made from aircraft-quality aluminum. Black hardcoat anodized for added protection. Choose between MLOK or Quadrail for customizable accessory attachment.
Barrel: The 10.5" 4150CMV steel barrel is button rifled with a 1:24 RH twist for enhanced accuracy. The .450 Bushmaster cartridge provides superior stopping power while the .750 under gas block diameter and carbine-length gas system ensure smooth cycling.
Upper Receiver: Featuring the Socom A3 flat top upper receiver, made from 7075-T6 aluminum and black hardcoat anodized, designed to withstand the toughest conditions. Includes a forward assist and dust cover, with a wider door for accommodating the larger .450 Bushmaster rounds.
Gas Block & System: The .750 low profile gas block is crafted from aircraft-quality steel and paired with a carbine-length stainless steel gas tube, ensuring reliable and efficient cycling.
Muzzle Device: Finished with a black nitride linear compensator, which minimizes recoil and muzzle rise, allowing for quicker follow-up shots and better accuracy.
Ready for Your Lower: This upper comes fully assembled and test-fired for reliable cycling. Just install it onto your AR-15 pistol lower receiver and you're ready for action.
Important Note: The upper does not come with BCG (bolt carrier group) or charging handle, but these can be purchased separately to complete your build.
Buffer Requirement: To ensure proper cycling, we recommend using a 4.3 carbine buffer for this setup.
Handguard Options: You can choose between the MLOK or Quadrail free-float handguard for a more customizable shooting experience, based on your accessory preferences.
Durability & Performance: The 4150CMV steel barrel, paired with the black nitride finish and linear compensator, provides a high level of durability and a smooth shooting experience.
