|Very sturdy setup. I bought a Tapco Intrafuse vertical grip with this. Very pleased!
If you know your gun decently, it's not much of a problem to install without instructions.
For the WASR 10-63: I had to put both the top and bottom rail in place LOOSELY in order for the sling-mount to properly secure. Keep the top rail (w/gas port) as loose as possible, but as near a “seated” position as possible, b/c you'll need some space in order to push the tab on the sling-mount backwards. If you don't leave some room, then the metal tab on the sling-mount will hit the gas tube and won't be locked.
Once you have the sling-mount and bottom rail secured, then you can install the top rail. I had to flare out the corners of the gas-tube mount (with pliers) where it butts up next to the top/bottom rail. You'll see what I'm talking about when you get to it. The new rail system was designed for the top rail to go straight down onto the bottom rail, but the gas port (which has the top rail on it) actually goes down at an angle; flaring out the corners slightly will allow the top rail to fit onto the bottom rail. Hope this helps some of you.
Keep in mind this might not work on all AK's and other tricks might need to be used instead.|