PROMAG RAIL ADAPTER HK USP M3 M6
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ProMag HK USP .45 Compact M3 / M6 Flashlight & Weaver Rail Adapter Black. This hard anodized aircraft grade aluminum adapter clamps on to the accessory rail on HK USP compact pistols. The rail allows the use of flashlights and lasers designed to attach to Weaver or Picatinny rails.