by Luth-AR
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Luth-AR MBA-2 Fixed Stock with Buffer Assembly including A2 extension tube and .308 buffer spring. Fits AR-10.
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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