These receivers are M4A4 mil-contract upper receivers. The finest upper receivers on the market, period. Features: Machined from 7075 aluminum forgings, M4 feed ramps, Marked 'M4' above gas tube inlet hole, Hard black-anodized finish. NON T-Marked. 100% USA Made
Brand: Unbranded - SKU: - Model: - UPC: 3393804102986
|Secondary Description||UNBRANDED-AR Forged A4 Stripped Upper Receiver|
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