I don't recall what brand I have, but it works terribly. We got it a few years ago for hunting, but the stupid thing caused me to miss a deer because it would ot feed after the first round. My dad did everything he could think of to try to get it to work, but nothing did.
Like I said, I can't remember the brand, but it came with two followers: one that would allow 9 rds, and one that would only allow 5.
it's in the lower left of the picture with the black plastic base....
I ended up getting a 5 round mag made by Promag from Midway. They had 3 or 4 different brands including some that do not protrude beyong the mag well. I did not like that idea. The Promag has functioned 100% for a couple hundred rounds.