The Streamlight TLR-7sub Weapon Light delivers 500 lumens of brightness and a 140-meter beam distance, making it an essential accessory for subcompact handguns in low-light environments. This sleek black light securely attaches to railed subcompact pistols, including select models from Glock, SIG SAUER, Smith & Wesson, Beretta, Springfield Armory, and Heckler & Koch, preserving the firearms compact profile while expanding its tactical capabilities. An ambidextrous rear switch enables quick activation for both left- and right-handed shooters, and a tool-less rail clamp system ensures secure attachment and easy removal without handling the muzzle. Powered by a single CR123A lithium battery (included), the TLR-7sub offers up to 1.5 hours of runtime and features a user-enabled strobe function for additional tactical advantage. Built from durable anodized machined aluminum, it is IPX7 waterproof, able to withstand immersion in water up to 1 meter for 30 minutes, and weighs only 2.4 ounces with a length of 2.58 inches for unobtrusive all-day carry.