I bought this a few months ago for a project but plans have changed. It's a lightly used Colt SP1 large hole upper receiver with rear
sight installed but no port door. It's in excellent condition other than what appears to have a touch up mark
behind the ejection port on the right side that's visible in the photo,
but only noticeable at certain angles in person. The mark toward the front of the handle on the second picture is oil.
$165 shipped to USA; PayPal only and no trades.