Shop By .450 Bushmaster

.450 Bushmaster Barrels, Uppers & AR-15 Rifle Parts

The .450 Bushmaster is built for power. Whether you're upgrading your AR-15 or building a hard-hitting hunting rifle, we have the best .450 Bushmaster barrels, uppers, and complete rifle kits to get the job done.

Why Choose .450 Bushmaster?

• Serious Stopping Power – Ideal for hunting deer, hogs, and large game.
• AR-15 Compatibility – Upgrade your lower with a big-bore upper.
• Straight-Wall Cartridge – Legal for hunting in many restricted states.

Shop .450 Bushmaster Barrels, Uppers & More

• .450 Bushmaster Barrels – Available in multiple lengths for precision shooting.
• .450 Bushmaster Uppers – Pre-assembled uppers for easy installation.
• Complete Rifle Kits – Everything you need to build a .450 Bushmaster AR.
• Muzzle Devices & Accessories – Reduce recoil and customize your build.

Upgrade to .450 Bushmaster Today

Whether you're setting up a new hunting rifle or adding serious firepower to your AR-15, our .450 Bushmaster barrels, uppers, and parts will help you build the ultimate big-bore firearm.