Yes on these I found something called a jack nut (I think that is what it is called). It is like an anchor you would use in a wall. You turn a screw into the jack, it expands and locks into place. I did that and added a bunch of that epoxy steel putty. around it and filling about the first 2-3 inch of the receiver end of the barrel. Then I painted the screw head and jack nut base orange to flag it as plugged.
Theoretically one could probably drill out that mess, but I bought these barrels for the price of shipping for the purpose of plugging them. Coupled with removing the firing pins, spring, and back plate, they are 100% inoperable at this point. Yes I plan to convert them back, but the way they are now are rendered safe. These would be similar to what one would do to hero guns in the movies. Guns where they aren’t shot but used for close up scenes.
