Description
The Lead & Steel LS300-16 is a 16″ .300 Blackout replacement barrel turned from 4150 Chrome Moly Vanadium steel and treated with a wear-resistant QPQ black nitride finish. Machined in the classic government profile, the LS300-16 is purpose-built for .300 AAC Blackout AR-pattern rifle builds.
Chambered for .300 AAC Blackout and rifled with a 1:7 rate of twist, the LS300-16 is built to stabilize a wide range of bullet weights used in the cartridge. The QPQ black nitride treatment hardens both the inner bore and the exterior surface, reduces friction for easier cleaning, and provides long-lasting corrosion resistance whether the rifle sees hard use, frequent shooting sessions, or all-weather carry.
Engineered to drop into a standard AR-15-pattern upper receiver, the LS300-16 is a straightforward swap-in for shooters building, re-barreling, or upgrading a .300 BLK rifle or carbine. Each barrel ships ready to install, backed by Lead & Steel’s reputation for duty-grade components.
