Finally joined the USP Master Race with the USP 9 Tactical! Added the GG&G light adapter and Jet Funnel. Now just waiting on my Surefire X300. Did I well? : r/USPmasterrace
ArmaLaser GTO RED Laser Sight w/ GG&G Rail Adapter for H&K USP Compact Pistols | eBay
GG&G 1913 RAIL ADAPTER FOR HK USP - YouTube
USP Pistol Light, Laser Adapter - HKPARTS
USP9C with GG&G rail and TLR-7A : r/USPmasterrace
GG&G HK USP Compact Picatinny Rail Flashlight and Laser Mount, Accessory Rail, GGG-1134SP, RTG Parts
USP .45 Full Size with new style GG&G rail adapter + X300 | HKPRO Forums
RAIL ADAPTER FOR USP FULL SIZE | HKPRO Forums
GG&G USP Full Size Light And Laser Picatinny Rail Adapter
GG&G HK USP Compact Light/Laser Mount Aluminum Matte Black | Cheaper Than Dirt
GGG Pistol Flashlight Adapter - USP Full Size - HKPARTS
GG&G Slim Line HK USP Adapter for Surefire X200 & Streamlight M3/M6
Flashlights for full size USP. | HKPRO Forums
HK Flashlight Mounts
GG&G HK USP Flashlight Picatinny Adapter Aluminum Matte