TA 9mm 6450 6430. The year/serial numbers under Colt SP series was forwarded to me by an individual whose return address I no longer have. Double asterisk (**) under Bushmaster, a person on the internet e-mailed me that he had a lower that was shipped stripped (thus not a complete rifle) in 1991 from Bushmaster with serial #0327XX - ALWAYS CALL TO. Jul 22, 2012  Colt SP1 Serial Number Search. I need some help with a serial number search for a Colt SP1 it is a 16'Carbine, collapsible stock. I have tried my own research but my rifle seems to have an extra digit in the number. SP135XXX' I am unsure if the 1 is suppose to indicate it is 'SP1' and the serial number is 35XXX.

I own two of them, both fired sparingly, and I suspect their value to be around $1150. It really depends upon the buyer and is desire to aquire one. I paid $175 for one of them in 1975 and I can't remember what the other cost. ************ ************** ************ AS OF 2011: These thing s have skyrocketed in price mostly because of the 'Assault Weapon' bans and hysteria. Currently, these are offered for $1299-1599 range online (and they're selling well in the 'Free States' that allow their sale and possession by their free citizens) The H-BAR version (Serial number preceded by a 'CH' for 'Competition' or 'MH' for 'Match' versions) are more desirable and command more money than the 'SP' or 'Sporter' versions.

Either rifle is a fun.223 shooter and can be the basis for many conversions and modifications as well as used for competition sports shooting.