Glassman
Glass Gars Guns Garden
Yeah, I remember seeing something about that a while back. I meant to order locking pins and extractor upgrade but never have gotten around to it. And mine has ran perfectly for thousands of rounds suppressed, which is MUCH dirtier than without. That said, I do clean it and pay attention to it. Also I've had an Out of batter discharge with a 10/22 that scared the shit out of me. And thunderbolt ammo is horrible!You S&W 15/22 guys just watch out for this.
http://www.thefirearmblog.com/blog/2016/09/15/breaking-sw-mp-1522-rifles-banned-appleseed-events-due-run-away-battery-firing/
#TWSSA little long but after almost 20 years it doesn't bother me.