The Trijicon ACOG 2x20 riflescope is well-suited to firearms with limited space like UZI H&K or MP-5 9mm submachine guns. With a step-up in fixed magnification this illuminated reticle riflescope increases target detection distance in any lighting conditions. - The Trijicon Compact ACOG Mount w/ Q-LOC Technology features a Mil-Spec drop test rated 6061-T6 aluminum design with an easy to use one handed tool less mounting system. The spring-loaded design allows for constant retention and maintaining of zero even if the knobs are not tightened. - The mount boasts a low weight and low profile design with superior return to zero performance and is compatible with any Mil-Spec or NATO Picatinny rail. - Matte black anodized finish - Made in the USA - Length x Width x Height: 5.3 in x 2.1 in x 2.6 in (134.62mm x 53.34mm x 66.04mm) - Weight: 8.5 oz. (240.97g) - Magnification: 2x - Objective Size: 20mm - Reticle Pattern: Rapid Target RTR - Day Reticle Color: Red - Night Reticle Color: Red - Bullet Drop Compensating (BDC): Yes - Caliber: 223 Rem / 55 gr. - Bindon Aiming Concept (BAC): Yes - Illumination Source: Fiber Optics & Tritium - Power Source: Fiber Optics & Tritium - Adjustment: 2 clicks per in. @100 yards - Exit Pupil: 0.39 in. (9.91mm) - Field of View (degrees): 5.6� - Field of View (feet): 29.34 ft. @ 100 yds. (9.78m @ 100m) - Mount: Trijicon Q-LOC Technology Mount - Housing Material: Forged Aluminum - Finish: Matte Black