edit: seems like it's just mine - others report smooth operation.
mine jams on every first round, and jams occasionally on the remaining shots as well. Seems to happen because the magazine fits so loosely.
The mag sags under it's own weight about a 1/4" lower than it should be, as a result the first shell jams up against the metal flat spot below the chamber (right under the angled piece that is supposed to push the shell up).
Quite dissapointed, but hoping I just got a bad one. Still waiting to hear back from CanAm and I'm sure they are still busy processing orders.
These pics show the play in the mag. First pic feeds normally, second pic jams. The position in the 2nd pic happens under it's own weight.
Will certainly try another good cleaning and greasing. In the meantime I can't trust this gun to feed on a fresh mag, which means for now, it's a piece of junk.