colt ar15a2 hbar sporter year of manufacture

[84mmcarl-gustav]

Hi,I got a colt ar15a2 hbar sporter,and would like to know the year of manufacture,serial number SP 2224XX,Thanks

 

[#1bcshooter]

http://www.colt.com/CustomerServices/SerialNumberLookup.aspx

http://www.ar15.com/content/legal/serialNumberList.html