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Anderson AR15A3 upper receiver, stripped AR-15 upper with no barrel. Designed for AR-15 platform compatibility and intended to be paired with a barrel and other upper components. Includes standard upper receiver features for rebuilds or assemblies needing a no-barrel configuration.
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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 guide to component strategies for left-handed shooters, left-eye dominant right-handed shooters, and those managing eye/hand dominance mismatches. Covers ambi uppers, charging handles, gas system tuning, and real-world tradeoffs.
6 min read