The CT RAD(TM) and CT RAD(TM) Pro are optimized for pistols, but they are equally effective on long guns with Picatinny rails. With the CT RAD(TM) low profile pic rail mount, end-users can use their CT RAD(TM)s and CT RAD(TM) Pros on any firearm with a universal Picatinny rail section. Aerospace aluminum construction. Mount attaches to a MIL-SPEC Pic Rail. Works with the CT RAD(TM) and CT RAD(TM) Pro. Low profile height. Mfg: Crimson Trace Corporation