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Faxon AR-15 Duty Series Gunner Complete Upper Receiver Assembly in 5.56x45mm NATO with an 11.5 inch barreled upper. Designed around Faxon's Gunner profile for a balanced, rigid, lighter upper. Supressor-ready configuration with a fixed gas block. Compatible with standard AR-15 lowers and upper receivers. Includes upper receiver assembly and barreled upper components such as the barrel, handguard, gas system, bolt carrier group, and charging handle as part of a complete upper build.
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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