This tactical flashlight can easily be mounted on any of our Picatinny/Weaver rail system. The light features a triple on/off system - twist, push button or pressure switch. Mounting deck has thumb nuts for easy placement. • Durable and compact - a mere 4 5/8 inches and 6.5 oz • Precision machined 1 piece aircraft-grade aluminum tube • Anodized black matte finish • Integral Picatinny/Weaver style mounting deck • Tool free attachment with knurled nut and locking plate • Adjustable focusable beam • Complete with remote pressure switch • Two 3-volt Lithium batteries included • 6500 Candle Power