The NcStar XRS Series Compact Rifle Scope is a light weight modular option for AR-15 rifles. It comes with 4 separate Upper Scope Rings: 2 each Lightweight Rings, Dual Side Rails Accessory Ring, and a Low profile Micro-Dot Reflex Sight Base. The quick release weaver/picatinny mount is convertible to an AR-15 carry handle mount. If you have an AR-15 and aren't sure which optic will fit your rifle, look no farther. Features2 - 7 x 32mm XRS Scope with Modular Upper Scope Rings and Convertible Base MountLarge 34mm Scope Tube Diameter allows a bright clear image of your targetBlue Illuminated Scope Reticle for use in low light conditions. 7 Brightness settings.Adjustable Locking Quick Release Mount allows you to attach the scope to about any Weaver/ Picatinny type rails.Base Mount is convertible to an AR-15 Carry Handle Mount with see through channel for Iron Sights. Thumb nut and bolt hardware included.Includes 4 separate Upper Scope Rings: 2 each Lightweight Rings, Dual Side Rails Acc...