This is a Group Industries, semi-auto UZI reciever in the white, model HR4332.
It's pretty much a serial numbered stamping like an AK reciever. I was going to build an Uzi carbine but lost interest, so I'll trade it off for an AR reciever or sell it for $100. Shipped/insured CONUS
a serial numbered part so it has to go to a 01FFLClick here for the start of email@example.com