Securely fits many 1913 railed subcompact handguns including: the Smith And Wesson M&P M2.0 subcompact, Beretta Px4 Storm subcompact, Springfield Armory XD-E, XD-S and Hellcat Pro, Heckler And Koch HK45 compact; Engineered to produce a longer reaching beam; SL-B9: 1000 lumens, 200m beam, runs 30 minutes (default) or programmable to 500 lumens, 141m beam, runs 1 hour; CR123A: 500 lumens, 141m beam, runs 1.5 hours; Multi-Fuel: Uses (1) Streamlight SL-B9 protected Li-Ion USB-C rechargeable battery pack (included) or (1) CR123A lithium battery; Laser mode runs 29 hours; Ambidextrous rear paddle switches with HIGH and LOW options; Safe-off feature prevents accidental activation; saves batteries; Rail grip clamp securely attaches/detaches without putting your hands in front of the muzzle; Durable, anodized machined aluminum construction; User-enabled strobe function; IPX4 water-resistant; Includes mounting kit with key, multi-tool, (1) SL-B9 battery pack and USB-C cord; Limited lifetime warranty; Assembled in the USA