Miscellaneous SBR Uppers

Heckler & Koch Mr556 A4 Upper Receiver, Upper, 223 Remington, 556nato, 11", Black, Ar-15, Anodized 51001919

Born from the SOCOM PDW solicitation, the NEW Maxim Defense PDX(TM) U.R.G. is designed to handle the fierce demands of the Tier 1 community. The PDX(TM) U.R.G. dominates in close quarter encounters and achieves maximum energy on target without...