Local pawn shop has an SP1 with a 1980 serial number.  Nothing special or great about it, just an old original Colt SP1.

They are asking $999 for it, but seeing as it has been sitting there for maybe 2 years I am thinking they might come down a bit.  I was going to offer $850.

Nothing wrong with walking in with $800 in your hand and dropping it on the counter.  Cash talks loudest, and $800 is a fair price.  If it is in fantastic shape, I would pay more.

At the gun show last week there were 2 mint SP-1's, I mean mint, one was $1100 and the other was a even $1000, if this helps you.

Local gunstsore has an SP1 with Chinese-clone of the Colt scope for $850. They've had it for several months now. Usually the gunshows around here have rather unclean, kinda' rough SP1's for $1100 and up.

It's a pawnshop. Drop $750 on the counter but be willing to go up to $850-$900 depending on condition.

BTW, I paid $350 mine, NIB, in 1979.

SP-1 (R6000)  
- .223 Rem. cal., original Colt paramilitary configuration without forward bolt assist, 20 in. barrel with 1:12 in. twist, identifiable by the triangular shaped handguards/forearm, no case deflector, A1 sights, finishes included parkerizing and electroless nickel, approx. 6 3/4 lbs. Mfg. 1963-84.  

Grading

100% - $1,950
90% -$1,575
80% - $1,450
70% - $1,250
60% - $1,050

Early mfg. will command substantial premiums, especially for very low ser. nos. - ser. range is SP00001 (1963)-SP55301 (1976).  
Pre-ban serialization is ser. no. SP360,200 and lower.
Early SP-1s were packaged differently than later standard green box label guns.  

Quoted: SP-1 (R6000)   - .223 Rem. cal., original Colt paramilitary configuration without forward bolt assist, 20 in. barrel with 1:12 in. twist, identifiable by the triangular shaped handguards/forearm, no case deflector, A1 sights, finishes included parkerizing and electroless nickel, approx. 6 3/4 lbs. Mfg. 1963-84.   Grading 100% - $1,950 90% -$1,575 80% - $1,450 70% - $1,250 60% - $1,050 Early mfg. will command substantial premiums, especially for very low ser. nos. - ser. range is SP00001 (1963)-SP55301 (1976).   Pre-ban serialization is ser. no. SP360,200 and lower. Early SP-1s were packaged differently than later standard green box label guns.

That's great information - but it's all bullshit.  - I have a Nikon camera that the photo magazines say is worth $3000.  If I took it to a pawn shop, I'd get $500 for it.  

Now back to reality.

An SP1 is only worth what someone is willing to pay for it, no more.  If A guy has $800 into it and needs that cash, it may go for lower, but I don't put any stock into what the "publications" say a firearm is worth.

Your Nikon was probably worth $3,000 to a Nikon collector, but a whole lot less to someone who just wants to take snapshots of the family vacation.

Those firearm values stated above are based on what collectors are currently paying for discontinued, all-original, Colt AR-15 depending on condition and model rarity, not your typical shooter who just wants a AR-15.  

How many of us here would pay almost $181,000.00 for a restored 40 year old Ford Mustang that was once a Hertz rental car?  That's what a collector paid a couple days ago at the Barrett-Jackson collectable car auction.  So, what's the real-world value of that specific car?  It's $181K.  Hertz paid $3,750 in 1966.

Shooters versus collectors.