HECKLER & KOCH, USP RAIL ADAPTER COMPACT ADP-HKCP-140    MSRP: $9.95                   ADP-HKCP-140   Now you can mount your favorite LaserLyte Laser System onto some very popular pistols: Heckler & Koch USP, Bersa Thunder, Mini-Firestorm & Hi-Point. This adapter changes the grooves on the receiver into a Picatinny/Weaver type rail, allowing you to mount any of our clamping laser systems onto the rail including the LRS and FSL.