OLD dog new tricks and all that I Googled T R ROBB, and it is a new item on his home page. I had trouble finding one on JSR Site, but Googled half inch UNF rifle muzzle and it turned up on JSR fleabay site.
Pick up your gun, shove a bullet up the spout
It's the Major Dennis Bloodnok Rock'n' Roll Call Tango
Sorry , misunderstood , I thought you were looking to cover threads on end of your barrel, with a protector, which I have just ordered for myself.
Pick up your gun, shove a bullet up the spout
It's the Major Dennis Bloodnok Rock'n' Roll Call Tango