The TLR-1s HP by Streamlight produces a long-range targeting beam that reaches 400+ meters. It mounts directly to MIL-STD-1913 (Picatinny) and Glock-style rails, and includes rail locating keys for mounting to a variety of rails. the one-handed snap-on and tighten interface keeps hands away from the muzzle when attaching/detaching. It is available with either a standard door switch or a remote door switch. The TLR-1s HP is waterproof to one meter for 30 minutes.