I have found a used Colt SP1 in a local gun shop.  It has a 20inch barrel, flash hider, bayonet lug, no mag fence and an A1 upper.  

As I've never bought a used AR or owned a Colt what should I look for or avoid?

It looks like it has screws connecting the upper and lower reciever, can these be changed out with the push pins?

What would a reasonible price be for a SP1 in 90-95% condition?

Thank you for the help.

Chad

The only thing that might concern you, is the fact that you cannot own just one AR. Sooner or later, you will buy more.

Having said that, Bushmaster has the pivot pin you described.

I've seen an SP1 in 90-95% condition go for around $1200.


Here's mine.

Thank you.

Chad

I would have to agree with Mr. Coyotee, The price value on the SP1 is consistant with current values up here in Washington. You can aquire nice looking 90-95 percent condition SP1's for decent prices. The SP1 sporter and its little brother carbine #6001 are my favorites. Both share the same advantages of being light weight and accurate.