Davidson Defense Side Plan 10.5-inch AR-15 .300 BLK Pistol Upper Build Kit

The Side Plan 10.5-inch AR-15 .300 BLK Pistol Upper Build Kit from Davidson Defense provides firearm enthusiasts with a robust foundation for their builds. This kit features a 10.5-inch Hbar barrel, crafted from durable 4150 CrMoV steel with a phosphate finish. The barrel is designed for .300 Blackout caliber and utilizes a pistol gas system, ensuring reliable operation. The 1:8 twist rate enhances projectile stability, while the 5/8x24 thread pitch accommodates various muzzle devices, including the included GI Birdcage flash hider.

At the core of the kit is the Davidson Defense side charging billet upper receiver made from aircraft-grade aluminum, offering strength and an anodized finish for added durability. The lightweight handguard, constructed from 6061-T6 aluminum and featuring an M-Lok style, allows for customizable accessory attachment. This build kit caters to gunsmiths who appreciate quality craftsmanship and seek a reliable setup for their AR-15 .300 BLK pistol configurations.