Streamlight 69440 TLR Rm 1 With Remote Pressure Switch White 500 Lumens Cr123A Lithium Battery Black Aluminum The Low-Profile TLR Rm 1 features independently operating Push-Button And Remote Pressure switches To Provide The Security Of Knowing You'll always Have Light. It Is Packaged as a Kit Offering Everything You Need To Mount To Your Long Gun. Output: 500 Lumens Oal: 3.20" Weight: 2.74 Oz Battery: Cr123A Lithium Proofs: Waterproof Color: Black Material: Aluminum Filter Color: White Switch Type: Tailcap