Green Rechargeable Laser for HK H&K USP Compact Pistols w/GG&G Comp Rail Adapter | eBay
Finally picked up a GG&G adapter for my USP9SD : r/HecklerKoch
USP .45 Full Size with new style GG&G rail adapter + X300 | HKPRO Forums
PROMAG RAIL ADAPTER HK USP M3 M6
Full size USP/Surefire MR09 Adapter | HKPRO Forums
H&K USP Compact Tactical - An HK USP 45 CT with barrel thread protecter, GG&G rail adapter with a 2nd Generation Viridian X5L green laser sight and tactical light. | Facebook
GG&G GGG-1133SP Pistol Adapter for HK USP Full Size - Light / Laser Mount - NEW 813157007194 | eBay
HK Flashlight Mounts
Hey guys same gun new accessories, H&K USP EXPERT 45/ Solum Tool +3 Mag Extension and GG&G Rail Adapter : r/HecklerKoch
USP Light Adapter GG&G - YouTube
USP Pistol Light, Laser Adapter - HKPARTS
Amazon.com : GG&G Hu USP Comp Slim Line M3/M6 Mount Gun Stock Accessories : Sports & Outdoors