Colt SP1

[Great-Kazoo]

I had a friend of a friend ask me if I wanted a Colt SP1 from an estate.
I haven't seen it yet, but wondered what a fair value would be.
All I know is that it is reported to be in excellent condition, over 25 years old, has a Colt 4X scope.
What else should I ask before I see it.
I honestly don't know anything about ARs. I am an M1, M1A guy.

Second question, unmodified how accurate are the SP1s?

Price. Fixed or 2 pos collapsible stock. Some had em a lot didn't.
It should be a 1:12 pencil / .625 bbl
Very nice shooters 55gr drops them almost on top of each other (on a good day)

[BPTactical]

Condition is everything.
Also a major factor is if the original box/documentation is included.
Those alone can be 200-300.00 bonus or detractor.