Blue Book of Gun Values
@ 40 inches.
100-1000 depending on specifics
100-1000 USD
100-1000 USD
Proofhouse.com has Colt sn data. If not there, call Colt and they will tell you.
The AR15 series
What is the manufacture date of a Colt AR15 rifle serial number 192754 model SP1
12k-16k
Contact Colt, on line aucitons.
50-1500 usd
100-1000 usd
Depends on the model