SACair Forum

I went to Airsoft Extreme today and picked up a bottom rail (along with some other things) to mount on my M4. I am installing them on the stock handguards, and they seem solid... up until I actually put the vertical grip on it. Then the whole rig starts to wobble, and isn't secure at all. It didn't come with instructions, and it seems to work fine until I put it on. Any help would be appreciated.

is the rail loose or is it your hand guard?

The rail, but I partly fixed it, so it doesn't move around as much anymore. I can just deal with it though.