Cook's Gun Molds - for HK USP Tactical 40 w/Rail Adapter (Natural) | HolsterSmith.com
HK USP Full or Compact Rail Adapter
Element H&K USP .45 Pistol Under Rail Mount Black for $6.29 | TacticalGearTrade.com
Streamlight H&K USP Full Size Adapter for TLR Gun Mounted Flashlight | 26% Off 4.3 Star Rating w/ Free Shipping
MagRail - HK USP Compact - Magazine Floor Plate Rail Adapter - Mantis
Amazon.com : GG&G Hu USP Comp Slim Line M3/M6 Mount Gun Stock Accessories : Sports & Outdoors
Streamlight TLR-1/TLR-2 H&K USP Compact Model Rail Adapter - 69091 from SWPS.com
Umarex H&K P8A1 GBB Pistol Airsoft ( by VFC ) ( USP 9mm )
HK Flashlight Mounts
Heckler & Koch USP 45 (GG&G Rail Adapter & TLR7) : r/GunPorn
Universal Magazine Floor Plate Rail Adapter for MantisX - Mantis
Amazon.com : GG&G Hu USP Comp Slim Line M3/M6 Mount Gun Stock Accessories : Sports & Outdoors
USP 45 w/GG&G rail adapter and X300U : r/HecklerKoch
GG&G H&K USP Picatinny Rail Flashlight Mount HKUSP-MOUNT
ArmaLaser GTO GREEN Laser Sight w/GG&G Rail Adapter for H&K USP Compact Pistols | eBay
GG&G HK USP Flashlight Picatinny Adapter Aluminum Matte
