The Team Warne 45 degree offset rail mount fits to standard Picatinny-style rails. With the 45 degree mount you can easily attach a mini red dot, reflex sight or light to your AR-15 flattop. The solid high grade aluminum construction and precision crafting make this one of the highest quality accessories on the market. Available in 4 Team Warne colors, you're sure to be the envy of the crowd at your next match or day at the range.