The rmr type 2 is designed with a patented housing shape that absorbs impacts and diverts stresses away from the lens to increase durability.It also offers redesigned and upgraded electronics that have been proven to perform when mounted on slide ride pistols and other small arms.Its suitable for military law enforcement concealed carry self-defense target shooting and hunting applications.The rmr type 2 adjustable led sight puts the illumination control in the users hands.Easy-to-use buttons on the sides of the optic allow the user to adjust the illumination brightness toggle between manual and automatic modes and power down the rmr for storage.The automatic mode functions the same as the led rmr version.Battery: CR2032 LithiumMagnification: 1xDot Size: 3.25 MOALength: 1.80"Weight: 1.20 ozFinish: Flat Dark Earth CerakoteReticle: Illuminated Red DotAdjustment Size: 1 MOA