Try e-gunparts.com
It will be marked on the barrel
100-1000 depending on specifics
Mossberg 1000 barrels will fit the Smith & Wesson 1000 Super 12 only !!
A shotgun.
100-1000 usd
about 1000
50-1000 USD depending on specifics
100-1000 USD depending on EXACT configuration, condition, etc..
Less than 100 to over 1000 depending on specifics.
20-1000 usd
$650-$1000 used
Less than 100 to more than 1000 depending on specifics.