Luth-AR BS-11C Carbine Buffer Body Steel .223/5.56 AR-15

The Luth-AR BS-11C is a standard .223/5.56 carbine buffer body designed as a direct replacement or spare component for AR-15 rifles. Built from steel and loaded with 3 steel slugs, this buffer body delivers a total operating weight of 3.0 oz — the standard weight most commonly spec'd for factory carbine builds.

The BS-11C is purpose-built for reliable cycling with mid-length and short (carbine) gas systems, making it the go-to buffer body for most AR-15 carbines. It drops into any standard carbine buffer tube and is an ideal choice for replacing a worn or lost factory buffer, completing a build, or simply keeping a spare on hand for the range or the workbench.

Compact, durable, and affordable, the Luth-AR BS-11C steel buffer body is a simple but essential piece of the AR-15 platform.