Davidson Defense Frostfang 18-inch AR-15 .450 Bushmaster Rifle Complete Upper Build

The Frostfang 18-inch AR-15 .450 Bushmaster Rifle Complete Upper Build from Davidson Defense is engineered for precision and durability. Featuring an 18-inch Sepal barrel crafted from 4150 Chrome Moly Vanadium steel, it boasts a 1:24 twist rate and phosphate finish for enhanced longevity. The upper receiver is made from machined 7075-T6 forged aluminum and is finished in anodized black, ensuring robust performance under various conditions. Equipped with an M-Lok rail system, this upper build allows for versatile attachment options while maintaining a lightweight profile.

The low-profile gas block, designed for a .750 OD barrel, contributes to reliability in cycling. Additionally, the KAK .458 compensator minimizes muzzle rise, aiding in follow-up shots. This complete upper comes with a mil-spec AR-15 M4 charging handle and a special bolt carrier group made from 9310 alloy steel, all tailored for .450 Bushmaster compatibility, making it a reliable choice for any gunsmith who values freedom.