The Streamlight ProTac HL-X Rail Mount is a high-performance long gun light featuring an integrated red laser. It offers 1,000 lumens on high and 60 lumens on low, with a beam range reaching 270 meters. This multi-fuel light can be powered by two included CR123A lithium batteries or one SL-B26 rechargeable Li-Ion pack. Black Anodized Aluminum construction, OAL 6.56, Width 1.47, Height 1.76, Weight 10.80 oz, Impact / Water Resistant. Designed for carbines and rifles, it includes a rail clamp for rapid attachment to Picatinny rails and features a Borofloat glass lens. It provides 1 hour 15 minutes of runtime on high and over 20 hours on low for extended mission versatility.