I live in Canada, luckily it is not pinned. I tried a couple different ways, but they were not sturdy enough...Even scratched my barrel a little! But it is small and the receiver covers it up anyway, thank god! Anyway, took Terra's advice with the plastic vice blocks, but I used wood instead (didn't have any plastic blocks).....So I Dremeled a bit of a concave on each of the wood blocks so it would grip the barrel better and gave it a try...But it slipped....then I remembered i forgot to wrap a towel around it (this is key). With the towel it was a snap, wish I did all this in the first place, came off very easy! Thought this explanation might help some mechanically inclined people out (like myself)...Cheers!