100-300 dollars
$800-$1200, depending on which version and condition.
The M14 was never factory made as a semi-auto.
The SKB M-7900 is a pump shotgun not a semi-auto.
It is a semi auto PISTOL, not a revolver. Value depends on exact model and condition. Roughly $100-$350.
100-340
100-300
beats me...lol
I would need the Serial Number and Model of the Colt Semi-Auto marked on the barrel. Ivory usually adds $100-$150 to the price if done well or more is unusual with hand working.
50-150
$200
10-100 usd