GG&G HK USP Comp Slim Line M3/M6 Mount Black GGG1134SP. Fits Streamlight TLR-1 TLR-2 and L3 / Insight M3 and M6 Lightweight Mount Compact Size Type III Hard Coat Anodized Matte Black Finish Slim Line HK USP Cmp GGG-1134SP Specifications for GG&G HK...