to put swivel studs in is pretty easy. I had some studs but you can buy some at a gun store make sure that they are the ones with the nuts and not the wood screw type. first you have to take the stock off the gun and the butt plate . then put the gun in a vice and drilled a hole where you would put the studs(make sure your drill bit is the same size as the shaft on the studs). next i used a drimmel tool to flatten out the area where the nut would be sitting so that it would be flush and you would be able to tighten it. put in you studs use a little lock tite and tighten them. if you have a wooden stock you could use the screw type studs hope you can understand