Early type Rock River receiver (without the fancy markings). I had assembled it into a rifle, but it never really got used. No stock. I gave the buffer tube to someone. Bushmaster internals installed. 99% condition. It's been sitting not getting used for the past couple years. Email me for pics, to buy, or for any questions. I take paypal if you pay the 3% fee.
$150 shipped. Thanks for looking!