They're flemsy as F@#K!! Even if you upgrade the cheap ass butt plate it comes with, the stock is still weak. I could grab mine and twist it on the RE because you can't get it tight enough to be solid.
I'm a big A1 stock fan. The best I could find was vintage pull off of surplus. They don't have butt plate doors, but a solid stock without storage is more important than a cheapo with storage.
The strongest A1 length stock I ever tried was the Magpul Fixed carbine. It doesn't have the classic buttstock look, but it is a friggin tank.