Davidson Defense Helcaraxe 16-inch AR-15 .300 BLK Rifle Full Build Kit

The Helcaraxe 16-inch AR-15 .300 BLK Rifle Full Build Kit from Davidson Defense is engineered for gunsmiths seeking reliable performance and durability. This comprehensive kit features a 16-inch barrel made from 4150 Chrome Moly Vanadium with a phosphate finish and HBAR profile, designed with a 1:8 twist rate for optimal accuracy. The pistol gas system complements the .300 Blackout caliber for versatile shooting capabilities. The upper receiver is constructed from 7075 T6 aluminum with an anodized finish, ensuring robustness and a lightweight framework.

This kit includes a Mil-Spec AR-15 M4 charging handle, a complete Bolt Carrier Group made from 9310 alloy steel with a nitride finish, and an adjustable carbine stock over a heavy-duty Mil-Spec 6-position buffer tube. A low-profile gas block and a 5/8x24 steel flash can round out the package, making this a straightforward DIY assembly for those who value craftsmanship and freedom in their firearms.