I'm very happy with my M57... also from J&G.
Got a leather holster (with cleaning tool) and an extra magazine from Liberty Tree Collectors. If you want the same magazine, my M57 came with a looped follower.
I also have a Nagant at my FFL, which I bought with the M57. I got a can of both ammo from them, which my credit card took a beating on (didn't want to get guns without ammo, and I ordered a little bit after the Newtown shooting). Have a SIG P228 there, which I'll be picking up first (NJ's stupid one handgun a month law).