Laser Ammo Single Dot Rear Pistol Sight for Glocks, Red The T.A.S Pistol sight is based on cutting edge fiber optics technology and sight picture is presented to the shooter: Fast, Clear, Accurate The T.A.S pistol sight is made of aircraft grade aluminum 7075 and polycarbonate The T.A.S sight is machined to the accuracy of a hundredth of an inch, ensuring a robust and accurate product