To the Glock 80% frame, a frame parts package is necessary to complete the frame. When the frame is completed, you can pair it using a constructed-out slide. Now I grab the sandpaper…I start off a little rougher and graduate to some thing rather high grit (a lot less tough). https://glockp80forsale40505.boyblogguide.com/30946859/glock-43x-p80-frame-things-to-know-before-you-buy