Feature:Fit 20mm picatinny rail mount.Material: Made of Durable， High Density Aluminum.Bulb Type: Q5 LED Bulb.Quick Detach for picatinny rail.Switch Operating: push-button.2 Mode Setting， Super Bright/Flashing.Grip Length: 14cm/4.2 inch.Weight: 377g.Baterries: 2xCR123A(Not included).Package include:1x Tactical Flashlight grip