I bought one of Clints gas tubes for my MWS 20 inch SS barrel. The first four rounds I ran without my can. One locked back and two didn't. My thought, perfect. Screwed on the can, and my MWS tossed the brass at 3:30 oh so softly.

If you want to tame your MWS, look into Clints replacement gas tubes to control the very hot gas system. If your not running a can, its a waste for most unless you just want a smooth shooting gun. But if you run a can, spend a couple bucks and make it GTG.

YMMV

PB