One sheet of steel shim stock. The package came with tow sheets. Only one sheet is left. Sheet is brand new. One sheet will literally last you a life time of builds. Use this for shimming barrels. I’ve used it in the past to shim up AR-15 barrels. I found a very small strip is all you will need. A small strip really locks up the barrel and reciever. You would be surprised how much slop can be in a milspec reciever and barrel. Up your next build quality with this cheap solution. Pick up off of Wade Green Rd in Kennesaw at the Publix.
