Description
The Luth-AR 308-BCACL is a complete retro-pattern bolt carrier group designed for .308 Winchester / 7.62x51mm NATO rifles built on the DPMS LR-308 platform. Built to original DPMS LR-308 dimensions, this BCG drops into AR-10-style rifles that follow the commercial DPMS LR-308 spec, making it an ideal component for both retro and modern .308 AR builds.
Construction follows Mil-Spec component metallurgy: the carrier is machined from 8620 steel, paired with a 4340 alloy steel cam pin and a 4130 alloy steel carrier key. The full assembly is heat-treated to Army specification and finished in corrosion-resistant Manganese Phosphate. Internal gas bores and the firing pin retaining pin channel are chrome lined for extended service life under sustained use.
As a dedicated LR-308 component, the 308-BCACL is engineered for the commercial DPMS LR-308 pattern and is not compatible with ArmaLite-pattern AR-10 lowers, which use a different bolt carrier geometry. It ships as a complete bolt carrier group, ready to install in your LR-308-pattern build.
