TRIJICON ACOG 2X20 COMPACT RTRTM 223 RET 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