.450 Bushmaster Complete Upper Assemblies
Devastating Knockdown Power: .450 Bushmaster Complete Uppers
Experience the legendary performance of "The Thumper" with our selection of .450 Bushmaster complete uppers. As the most powerful straight-walled cartridge available for the AR-15 platform, the .450 Bushmaster is the premier choice for hunters in restricted states like Michigan, Ohio, and Iowa. These complete upper receivers deliver devastating terminal ballistics on big game, offering 250-yard lethality that far exceeds traditional slugs or muzzleloaders. Engineered for "plug-and-play" simplicity, our uppers allow you to transform any standard mil-spec lower into a heavy-hitting brush rifle capable of taking down deer, bear, and feral hogs with a single shot.
Every .450 Bushmaster complete upper assembly in our inventory is purpose-built to handle the unique stresses of large-bore fire. We utilize barrels with a 1:24 twist rate to perfectly stabilize heavy 250gr to 300gr projectiles, paired with high-efficiency muzzle brakes threaded 5/8x32 to significantly tame felt recoil for faster follow-up shots. To ensure 100% reliable cycling, our uppers feature enlarged ejection ports and specialized .450 Bushmaster bolt carrier groups (BCGs) with heavy-duty extractor springs. Whether you need a 16-inch carbine for thick timber or an 18-inch precision build for the open field, our uppers arrive headspaced with Manson Go and No-Go gauges and ready for your next trophy hunt.
Large Game and huge boars is what the 450 Bushmaster is best at harvesting. Build your large bore 450 Bushmaster the right way with a reliable and accurate upper from AR15 Elite. We offer 450 Bushmaster uppers for the AR-15 with different length barrels and custom options. 450 Bushmaster is a wise choice in caliber in a straight-wall cartridge for hunters in northern US states with larger game animals. It's never to early to shop our AR-15 UPPER ASSEMBLIES for the season, start now.
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