Streamlight 88090 ProTac HL-X Rail Mount Black Anodized Aluminum 60/1000 Lumens, White LED Bulb/Red Laser, 270 Meters Beam, Picatinny Rail MountThe ProTac Rail Mount HL X Laser is a 1,000 lumen long gun light with an integrated red laser. It features multi fuel innovation that allows it to accept Streamlight's SL B26 protected Li Ion USB rechargeable battery pack or CR123A lithium batteries, ensuring that you'll always have light when you need it. It also incorporates the versatility to use two lithium battery types; two CR123A batteries, or one Streamlight SL B26 protected Li Ion USB