Optic Centerline Height: 1

Weaver Mount will easily Clamp onto Compact and Subcompact Pistols that have a Weaver Style Accessory Rail

Rings will mount onto 30mm & 1" scope tubes

The slide reciprocates (blows back)

Batteries and Charger not included

NcStar Gen 2 DP Red Dot Optic PTS Optic Centerline Height: 1Generation 2 of the DP Series of Red Dot Reflex Optic with an Aluminum Body LED (Light Emitting Diode) 100% Safe for the Eyes Unlimited Eye Relief for flexible mounting 24. 0 X 34. 0 mm Objective Lens Standard On Off Switch Integrated Mount that is compatible with Weaver Picatinny MIL_STD 1913 type rails Uses CR2032 Battery (included) Anodized Aluminum Construction