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Faxon Firearms Duty Series AR-15 5.56 Nato 16in Upper Receiver is a complete upper built around Faxon's 16in Gunner barrel with a mid-length gas system. It ships as a complete upper with a Faxon M16 Bolt Carrier Group (Nitride) and MIL-SPEC charging handle so you can mate it to a compatible AR-15 lower and get running quickly. This model uses a standard A2 flash hider and a Faxon low-profile fixed gas block (non-adjustable).
Specifications:
Notes: Variant SKUs allow options with or without BCG/Charging Handle; check SKU for included components.
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Sign In to Set AlertThis is a bundled product that includes multiple components. The exact contents may vary - check the product description for more details.
• Complete assembly ready to use
• Multiple components included
• Value package pricing
Guide
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