Mossberg has a web site.
Many of the Mossberg bolt action shotguns used a removable choke, not an adjustable. Sold under the name C-Lect-Choke, this was an external choke that could be unscrewed with a special wrench, and a different choke screwed into its place.
C-lect choke is an adjustable choke system that Mossberg implemented on their shotguns pre-1977. After 1977 they went to the accu-choke system. The choke is adjustable between Full, Modified, and Improved Cylinder. It is, however, not recommended for use with steel shot.
Check the owner's manual, or check with Mossberg customer service. Unless the choke is rated by the maker for steel shot, not good to do.
Can you Yes, should you NO. a full choke should not be used to shoot slugs.
no it wont ive been looking at mossberg choke tubes for a few months for my 20gauge the only choke tubes that work on mossberg 500s are Winchester ,wetherby,browning invector and savage hope yours is a 12 because 20s are about non existent
$100-$130
No.
$100-$130
200-400 USD
Yes, but, DON'T DO IT!!!!!!!!
We would use a modified or full choke, and #4 shot.