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Luth-AR fixed rifle-length buffer tube complete assembly kit for AR-15 builds. Constructed from 6061-T6 aluminum with a hardcoat anodized finish. Includes an A2 rifle buttstock extension tube, a standard .223/5.56 rifle buttstock buffer spring, and a standard rifle buffer body assembly. Designed to convert a carbine setup to a rifle-length buffer tube recoil system. MPN: BAP-1.
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A comprehensive overview of every major component in an AR-15 build—including what's inside bolt carrier groups and parts kits—organized by assembly for new builders.
12 min read
Guide
A neutral overview of AR-15 buffer systems, covering carbine vs. rifle receiver extensions, buffer weights, springs, and how these parts affect cycling and recoil.
5 min read