LaserLyte Heckler & Koch USP Rail Adapter Black ADP-HKSP-140 | Customer Rated Free Shipping over $49!
Amazon.com : GG&G Hu USP Comp Slim Line M3/M6 Mount Gun Stock Accessories : Sports & Outdoors
So I'm new here, been looking around for rail adapters for a light and stumbled upon this picture. I can't seem to find any info on it, does anyone have any idea