If you are an owner of a Sub Compact handgun and you are taking the next logical step of adding a lighting system to your pistol, the Streamlight TLR-7 lighting system is the only one you'll need.Features: Lumens: 500 Run Time: 1.5 hours Beam Distance: 420 feet Battery: Included CR123A Lithium Battery Quantity: One (1) Length: 2.51 Inches Weight: 2.39 Ounces Mounting Kit: Included W/Key Fits GLOCK 43x/48 MOSThe Streamlight TLR-7 Sub Ultra-Compact light system is designed to attach to select Glock models such as the 43X series or 48 MOS series pistols. Streamlight brings to bear the latest in lumen technology, with the TLR-7 offering a powerful beam that provides up to one and a half hours of high-intensity light.The safe off feature on the TLR-7 not only prevents accidental activation but is a battery-saving feature you will be glad to have. With this lighting system attached to your pistol, you will get an extensive range of lighting and excellent peripheral coverage.Using a rail clamp system, the TLR-7 can connect and be removed quickly without the need for special tools and forcing you to place your hand in the front muzzle of a loaded weapon.Built with an easily accessible tail switch, the TLR-7 comes in durable anodized machined aluminum and will take a tremendous beating and continue to function flawlessly. The TLR-7 is also IPX7 waterproof up to three feet of water for thirty minutes.If you deploy the beam in inclement weather conditions, you won't have to worry about losing light. An ultra-compact lighting system, the TLR-7 for a Glock 43X or 48 MOS handgun provides the owner or operator the utmost lighting for the best price.