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ATI Milsport Complete Upper 5.56 NATO, 7.5 in barrel, 1:8 twist, M-LOK rail, Black finish. Includes MIL-SPEC bolt carrier group and MIL-SPEC charging handle. Upper receiver built from 7075-T6 aluminum with anodized black finish. Specs: Caliber 5.56x45mm NATO; Barrel Length 7.5 in; Barrel Twist 1:8; Color Black; Gun Model AR-15; Rail M-LOK; Gun Type Rifle; AR Platform; Included BCG MIL-SPEC; Included CH MIL-SPEC.
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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