You have a slide, adapter plate, dovetail mount, or custom gunsmith cut. Putting them together? Its gotten complicated. Swampfox has your back with the Red Dot Screw Pack, containing 14 four-screw sets of various thread pitches and lengths. When you run into mounting trouble, these small-head, T10 screws are the most likely to be the “problem solvers” needed to attach Kingslayer, Liberty, Justice, and Sentinel to those slides and mounts. Five sets of Do It Yourself screws (6-32, 4-40, M3, M3.5, M4 pitches) deliberately feature a too-long-for-everything 14mm effective thread length. If all else fails, grab your Dremel or belt sander and trial-and-error cut them for a truly custom fit.