Reminds me of the first 14.5 inch SBR AR 15 I tried to remove an A2 flash hider from so I could attach and pin then weld a compensator. Three pre-drilled blocks of wood in my shop vise and the only thing I accomplished was ruining the picatinny rail with vertical foregrip when I used the carpenters framing hammer to ‘tap’ on the wrench slide onto the flash suppressor. Oh, I did rotate the flash hider about 14 degrees, which reduce the recoil noticeably. But that little bugger reamins welded to the barrel. It’s now a ‘utility’ rifle. I still have the compensator, in a ziploc baggie in the AR parts box.
Colts 13, Pittsburgh 13