The Holosun ARO-GR2 Enclosed Green 2 MOA Sight offers unmatched tactical precision for effective target acquisition in diverse conditions.Engineered with a robust enclosed design, this sight ensures durability and performance reliability. It seamlessly mounts onto standard 1913 Picatinny rails, making it an indispensable tool for serious shooters.Enclosed design for rugged protection2 MOA green dot for precise aimingCompatible with 1913 Picatinny rail systems1.63" lower 1/3 co-witness mount includedEnhance your shooting effectiveness with the Holosun ARO-GR2, where cutting-edge technology meets tactical performance.