SOLGW M4L89UPPER13.7556XL L89 UPPER 556 13.7 V2
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Product Overview
Sons of Liberty Gun Works L89 V2, Complete Upper Receiver, 223 Wylde, 13.7" Pinned (16.5" OAL) Button-Rifled Barrel, HUXWRX Flash Hider, Low-Profile Gas Block, Black M4L89UPPER-13.7-556XL