I just got my SR22 today... Loomis... Mine came without flash suppressor... I think most of the Rugers shipped to Canada no longer have the suppressor. Instead it comes with a thread protector... It's a serrated ring, about an inch long that's screwed onto he threads t the end of the barrel... Odd that its so tight... Should turn right off...
I've never heard of an SR22 without threaded barrel...