A gentleman I know was asking me this and I have no idea so I told I’m I would ask here. This is what I was told, if dates or anything is incorrect it’s not my fault.

He is being offered a 1965 Colt SP1 20inch upper with around 400 rounds through it. The guy selling it is in California and does not want to part with the lower because it’s not in the system. I searched around gunbroker and only found a couple SP1 uppers and there $5-600. He wanted to know what a fair price was.

Personally I wouldn’t break this up but it’s not mine.