NcStar D4C CAMO Red Dot Sight With MULTI RETICLES Features LED (Light Emitting Diode) 100% safe for the eyes Anodized Aluminum body Heads up display  Unlimited eye relief and field of view Seven Position rheostat knob for multiple brightness settings Powered by three volt lithium battery (CR2032) Includes extra battery lens cover mounting tool Specifications MAGNIFICATION:1X OBJECTIVE DIA(MM): 24X34 RETICLE: MULTI RETICLE(4) DOT SIZE:3 MOA CLICK VAL: 1 MOA EXTERIOR FINISH: CAMO ALUMINUM LENS COATING: RUBY N.W. (OZ.): 4.20 LENGTH (IN): 3.25 MOUNT : INTEGRATED WEAVER STYLE Manufacturer: NcStar Model Number: D4C SKU: NC_D4C more info