Dittos - manners stocks with a mini chassis come with T30 torx action screws, but otherwise, they come only with the aluminum pillars if you ordered the stock inletted for pillars. It's up to you to cut them to length, glue them in, and provide action screws of the proper length. If the screw needs quite a bit of length removed to fit, I usually cut it off using a Dremel with a cut-off wheel. If it only needs shortened a bit, I'll run it into a 'screw gizzy' (Brownell's term), which is a piece of .0625" thick 4140 plate that's been drilled & tapped for the action screws, then grind it to length on a disc sander. Before the screw is removed from the 'screw gizzy', I rotate it against the sanding disc to create a slight beveled edge, then back it out of the gizzy. That removes or smooths the ground threads as it's turned back out of the 4140 plate so it'll start easily. I got the screw gizzy idea out of one of the Gunsmith Kinks books from Brownells, and have also made gizzys of appropriate sizes for scope base screws (6-48 & 8-40). Making a gizzy out of a large enough piece of 4140 gives you an easy way to hold onto the smaller sizes of screws while sanding them to length.