You can mount VDDABKM onto KeyMod(TM) handguards at an offset angle (30deg/45deg) for a secondary optic to your primary, for close range target acquisition and for moving targets.You can also mount the VDDABKM directly to the top KeyMod(TM) slots of our AK KeyMod(TM) Mount Receiver Cover (VMTAKKM).Mechanical On and Off switch mounted to the rear of the optic for easy access.LED (Light Emitting Diode) 100% safe for the eyes. Unlimited eye relief for flexible mounting.Includes Micro Dot plastic cover, tools for mounting & zeroing the optic, and a spare battery. International orders will not include batteries.WEIGHT4.2ozLENGTH3.30inWIDTH2.00inDEPTH1.50inCOLORBLACKMATERIALALUMINUMBATTERYCR2032