THE GREATEST GUIDE TO GLOCK BUILD KITS FOR SALE

You should definitely use the proper bit, not have it inside of a vise, use a hand drill, and go facet by facet (not every one of the way by way of).  3 drills on each side for a total of six.Drive down to the spring and afterwards insert the spring cups in addition to the spring(takes a little follow…ensure you’re sporting eye defense all ov