The quickest, easiest upgrade in the history of accuracy.The mepro micrords brings the rapid target acquisition of a full-size red dot rifle optic to a compact pistol sight.Featuring a patented quick-detach (qd) adaptor kit that easily mounts using the pistols existing rear sight dovetail slot; no drilling, tapping or need for a gunsmith.Its the only red-dot solution that instantly mounts and dismounts without having to re-zero, with an adaptor that also gives you a meprolight trudot self-illuminated sight as a back-up when the red dot optic is removed.Built to mount in minutes to any pistol with red dot capability.It also serves as an excellent close-quarters red dot sight and backup sight for rifles and shotguns.Option 1- full kitmepro micrords red dot sight.Quick detach adaptor.Backup self-illuminated night sight set.Battery: CR2032Magnification: 1xObjective: 23mm x 17mm/ 0.9" x 0.7"Field Of View: UnlimitedEye Relief: UnlimitedDot Size: 3 MOALength: 48 mm/ 1.90"Weight: 38 g/1.34 ozFinish: BlackReticle: 3 MOA Red Dot IlluminatedAdjustment Size: 0.9 MOAWindage Elevation: Adjustable