Not by itself. You could possibly change the housing out with a Gen 4 housing and run the Gen 3 trigger bar with the Gen 5 trigger shoe. They changed the housing between Gen 3, 4, and 5 but I *think* the 4 & 5 are the same size. The Shoe on the Gen 5 is narrower than the previous gens because of the ambi slide stop (it goes around the trigger shoe now). So.. maybe with a mix of Gen 3/4/5 parts