I need some help with my MAK-90. I got a stock set to convert it from the thumbhole stock but the original screw has gone missing. Does anyone know where I can get a replacement or does anyone have a replacement that I can buy? I went to GunAccessories.com already and the screw I ordered is too long. I would go to the hardware store and find a screw but now I can't find the replacement screw either!:banghead: