Wait, you mean that authentic foot-warmer attachment they sold me on sportsmans guide that uses blanks to work a heater and simply screws right on is a fake?!? Curses!

Haha
But this does bring up a good point- I work in a gun shop and spend many weekends raiding local and semi-local pawn shops and get to see a wide variety of rifles "customized.". It never ceases to amaze me the things I've found screwed, bolted, welded, or, my favorite, duct-tapped on the ends of milsurp rifles. I've even seen a swedish Mauser not cut for the adapter with a flash hider tac welded on the end just the same... Made me laugh then cringe...