I just picked up this Puma PPS5 22LR 16" carbine. It has a shrouded bull barrel and a wood stock. It's made in Italy. It's supposed to be patterned after the German MP-29 Schmeisser SMG. However I think it looks more like the Russian PPSH. It seems to be of solid quality construction. Mine came with the 50 round drum magazine, but there are 10, 15 and 30 round stick magazines available. One draw back is the price of the magazines, there not cheap and with this being an import, I don't see the prices coming down. The price of the rifle was $529 before sales tax and transfer charge.
Anyway I picked it up a few weeks ago and have just now got a chance to do a little shooting with it.
I took three different kinds of ammunition with me today, CCI mini mags 40gr ccrn, American Eagle 40gr solid LL and Aguila 30gr ccrn. The first drum I loaded up with the American Eagle ammo. The 5th round I fired failed to eject and then somewhere around the 20 or 25th round I had the same problem. The next drum I loaded up with the CCI mini mags and all fired with no problems. I then tried the Aguila and it cycled with no problems or malfunctions as well. So then a loaded up another drum of the American Eagle and this time it cycled without malfunctioning.
I let three other people shoot it that were at the range today and in all I think I put around 800 rounds through it with only the two malfunctions I mentioned. As for accuracy, I really wasn't trying my best but I had no problems with keeping 4 inch groups at 25 yards (with iron sights standing). It was very fun to shoot and the shrouded bull barrel stays pretty cool even under rapid fire.
Here are a few pics.