With the same rugged precision as the legendary Trijicon ACOG, the Trijicon 4x32 Battery ACOG delivers robust engineering and enhanced user control. Powered by a single AA battery, the electronics offer an outstanding level of reliability with a straightforward brightness dial, allowing the operator to determine how much to illuminate the reticle-even in transitional lighting. The body has been optimized by moving the RMR mount forward to maximize its performance in conjunction with the ACOG. Fully night vision device compatible, the Trijicon 4x32 Battery ACOG is also compatible with most other 4x32 ACOG accessories available. Mfg: Trijicon Magnification: 4x. Objective Size: 32mm. Bullet Drop Compensator: Yes. Length: 6.0 in. Weight: 18.1oz with TA51 Mount and Alkaline battery. Illumination Source: LED. Reticle Pattern: Crosshairs. Day Reticle Color: Red. Night Reticle Color: Red. Calibration: .223. Bindon Aiming Concept: Yes. Eye R