The Burris FastFire II Reflex Red Dot Sight dramatically increases your shooting speed and accuracy. It simplifies the act of aiming, eliminating the need to focus on and align the front sight, rear sight and target. The sight is also extremely tough being made of steel, and it is completely waterproof. If you have been looking for a compact reflex sight, look no further. The Burris Fastfire II includes a Picatinny-style mount.