I have an spx shockwave, I was able to make this forend fit and function by bending in the heat shield and I took a razor blade and SLIGHTLY shaved the inside upper edge of the forend that is against the heat shield. Perfect fit, cycling is smooth with no hangups. The strap attachment is WAY better than factory, the factory attachment point would dang near cut you, this one is recessed perfectly to where it’s smooth. Perfect execution by def tac!