Impossible to answer without the serial number. Call Colt and they will tell you for free.
Proofhouse.com has Colt sn data.
You will have to call Colt and provide the serial number to find out.
You will have to call Colt and tell them the serial number.
What is the manufacture date of a Colt AR15 rifle serial number 192754 model SP1
Call Colt and they will tell you.
No serial number given. You will have to call Colt.
Made in 1964. First year of production.
pull out shell holder serial #behind it
You will need to call Colt.
You will have to call Colt to find out.
You must call Colt to find out.
You need to contact Colt