I have over 1000 rounds on mine. So far so good. Couple of buddies who bought from same batch I did have already replaced theirs. Did I just get lucky or am I on borrowed time? Time will tell I guess. But I think I may order some spares. You know, just in case.
Yep getting caught on the extension. Light sand. I also found using a speedloader and every few rounds set the rounds by repeatedly pushing the loader up and down helped a lot.
Using Claydot for over 50k rounds. In a 5" M&P with KKM barrel - 1.14 OAL 4.1 gr 180gr Blue Bullet made 171 PF
Now shooting a Edge - 1.175 OAL 4.3gr 180gr Blue Bullet making 168 PF
Very soft, more of a push then a snap
I'm liking mine. Made some minor changes to it and have shot a couple matches so far. Gun has run flawless. Running the Brownell brand 10 rounders and Dawson 10 round mags. So far no feeding issues.