Not worth it
It take modifications to take poly mags. It doesn't like to take most metal mags. Once fixed to take all mags I tightened it down and the bracket for the bolts broke. Don't buy this garbage.
Save your money
This is a cheap, flimsy, useless piece of plastic that doesn't fit (at all) and is held together with hardware so small that I thought they accidentally shipped parts to the world's smallest model airplane or displays from a class on how to keep choking hazards away from toddlers. Awful design for a rifle that has a rep as one of the most tough and durable firearms in history. Save your money and load your AK like Mikhail intended.
Don't buy
The mag well had to be worked on several times to get proper fit. I had to Dremel it a lot. One of the screw holes was off center which made if very difficult screw together. The screws are weak and way to small. After it was installed it didn't seem to do much to assist the the magazine feed. I removed it and scrapped it. This thing cost way to much, and it is just junk. Save your money. I read the reviews and still bought it. Bad idea.
Cheaply made
Fit on my Arsenal AK fine. Or so I thought. Small screw attaching metal lip to the receiver stripped out. Figured no problem, as I have some more loctite and I'll try that. Installed it again, began to screw in the sides when the cheap 'polymer' cracked and almost split in two. Tried some JB Weld and and figured I could just sand it down later. Tried fitting a metal Bulgarian factory mag and a Tapco mag in, and neither would fit due to the mag funnel. Removed and trashed. I'd suggest training with mag reloads and get used to how it works. I would not recommend putting this on any rifle you plan to use to defend your life. If you can get it to work for a range weapon or competitions, best of luck.
Bad Fit
This would not install on my Romanian
Doesn't work
I bought one from the guy at a gun show and it didn't work on my Arsenal/Saiga AK-47. I ended up mailing it back to the owner in Hayward Ca. for a refund. I wish it would've worked but it is flawed.
Does not fit WASR-10
Does not fit WASR-10, waste of money.