The Anderson Manufacturing AM-15 is a stripped AR-15 lower receiver. Machined from 7075-T6 aluminum forgings with Type III hard coat anodizing. Tolerances held to ±0.005″ on critical pin holes and fire control group pocket.
Features M4 feed ramp cuts for reliable feeding with carbine-length gas systems. Compatible with all mil-spec AR-15 upper receivers and fire control groups. Takes standard pistol grips and buffer tubes.
Requires FFL transfer for purchase. Ships in manufacturer’s packaging with no additional accessories included. Weighs 8.3 oz as stripped.
Jake Morrison’s shop notes
Anderson AM-15 stripped lower receiver. Forward pivot pin hole measured 0.2495" diameter across three samples. Tight fit with some Mil-Spec upper receivers, requiring slight reaming for smoother assembly. Trigger pin holes consistently within spec at 0.154".
Tested: 3310 rounds bench-cycled. Pocket tolerance measured: within 0.0003″ on this batch. Weight (actual): 19 oz on shop scale. Units shipped from Phoenix in January 2026: 72.
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