Fixed 4x Prismatic Scope with 24mm Diameter Objective Lens , Sharp and Clear ImageCrystal Clear Prism Scope With FMC Prism Offers Distortion-Free and Edge-to Edge Image,3.0in 76mm Long Eye Relief, 5.5° F.O.V Wider Than Most Other Similar Prism Scopes,10 Levels Illuminated Reticle, Very Bright & Dim (Fit Night Vision), 1MOA Adjustment, Water ProofMini CQB Prism Scope 84mm 3.3in Length Featuring .223 5.56x45mm Cartridge1MOA Center Dot w/ Ring Illuminated BDC Reticle Optimizes Ultra Fast Shooting PerformanceMAG Footprint Red Dot Sight Platform on the Top (Detachable Plate w/ Front Iron Sight)It is really a MUST for your fast target acquisition in close to medium-range shooting