Trijicon's ACOG is a fixed power, compact riflescope with an illuminated reticle pattern for use in bright to low/no light with legendary durability and reliability. Featuring forged 7075-T6 aircraft-aluminum-alloy housing, multi-coated lenses, fog/waterproof and shock-resistant, proven to withstand recoil from 22LR up to 50 BMG, and easily passes U.S. military drop test requirements. Includes a thumbscrew flattop adaptor, AA battery, LENSPEN, lanyard assembly for adjuster caps and battery cap, Trijicon logo sticker, ACOG manual and warranty card.