Wasn't a ton of info out there regarding the seller or the manufacturer. I figured I give them a go because I wanted to try building my first upper and needed a 7.62 pistol for deer hunting in a pistol/shotgun zone. The parts all went together easily and I would definitely use one of these kits again. I added this to a standard milspec 80% lower in the same color, shockwave brace, heavy buffer, and new muzzle brake to get the recoil down.