With the 3x magnifier from Pirate Arms, you can quickly and easily get closer to your targets. This magnifier is easy to assemble and disassemble on any standard picatinny rail by means of a QD (quick detach). By pulling the magnifier lightly towards you, it is easy to fold to the side. By combining this magnifier with a reflex sight, you get the most out of your replica. You can easily switch between near and far targets. The magnifier can be adjusted both horizontally and vertically. Made of aluminum.