The Trijicon ACOG 4x32mm LED riflescope delivers combat-proven performance with LED illuminated red crosshair reticle and .223/5.56 bullet drop compensation for precision shooting in all lighting conditions.Trijicon ACOG 4x32mm LED Illuminated Riflescope (Model 100190)Red crosshair reticle with .223/5.56 BDC markingsSix adjustable brightness levels with off positions12 000+ hour battery life on single AA batteryBlack hardcoat anodized finishRugged aluminum alloy housingSuperior quality glass lensesIncludes TA51 Flat Top mountDesigned for tactical applications and precision marksmanship this ACOG combines traditional long-range accuracy with close quarters battle speed. The both-eyes-open design and user-controlled illumination make it ideal for military law enforcement and civilian tactical use.