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
HK Picatinny Rail Flashlight Mounts| HK USP Flashlight Mounts | GG&G Tactical Accessories
SOLD - HK USP 9mm Tactical | 1911 Firearm Addicts
Green Rechargeable Laser for HK H&K USP Compact Pistols w/GG&G Comp Rail Adapter | eBay
ArmaLaser Stingray RED LASER Sight with GG&G Rail Adapter for HK H&K USP Pistols | Laser Sight Pro
HK Picatinny Rail Flashlight Mounts| HK USP Flashlight Mounts | GG&G Tactical Accessories
Finally picked up a GG&G adapter for my USP9SD : r/HecklerKoch
Holster recommendations: USP 9T, GGG adapter, SF X300 : r/USPmasterrace