Unfortunately for me my HK91 seemed to have no problem accepting and ejecting the mag, for a while. And then after using a few times I loaded it full, put in the rifle, fired off all 30 and could not for the life of us get the mag out. I had to wince at dollars lost as we were forced to tear out the floor, spring and follower, and then crush the mag's sides with vise clamps to get it free. It seems that once full, the mag had expanded and the collar would not come free.

I have a new PTR-91 so i wanted to get a 30rd mag for it the more the better =) I looked all over for one all i could find were all $50-$80. each. So for $12. ill give her a try this mag is great if empty and you want to close action just push down on the follow other than that i have not had a prob, with it. works great i have ordered two more get them when you can will not be hear forever!!!

I have a PTR-91 and it works fine for me. If you put an empty mag in, the follower sticks up too high and won't allow the bolt go into battery. The obvious fix it to load her up with some ammo! Work's perfectly fine after that.

Seems to be a nice mag for the money. The follow probably could use some work but the body is very well built. Unfortunately, it will not function in my new PTR91. DANG! The product seems good.

Had bought 5 mags for my Century Cetme. all mags worked, have to rap the bottom of mag to set mags into rifle. For some, there may need to be some filing as I have read about on the usage of the H&K 20 rd mags. I am very please please with these mags, it would be great if they made 30 rd mags in the aluminum. The finish were very good on all five. :) Thanks!

These mags will reliably feed 30 rounds, uses 16 type mag springs. These mags do however require filing to fit a cetme, but they work great!!! I have 5 all together.

DO NOT BUY FOR CETME. Will not fill CETME's.