Yes, some of the remington tubes will but not all. I have a remington modified choke in my mp 153 right now.
They usually use a modified (medium) choke on the 870, unless it has choke tubes.
You can shoot slugs in a double. Slugs are best shot through a cylinder bore or improved cylinder choke. The tighter the choke, the more they will be disrupted. There is risk of excessive wear and damage through a tight choke--tighter than Modified Choke.
Yes, you can. I have shot countless lead slugs through a full choke, although greater accuracy can be attained by using a modified choke or a non choked barrel.
Yes: A Remington 870 shotgun with a modified choke will shoot any commercial shotgun slug.
no, the improved modified is between a full choke and a modified choke check out this website http://www.wildfowlmag.com/tips_strategies/shotgun_062304/
Modified describes a choke. Invector is a system of choke tubes.
Yes but it shoots them terrible. I have one myself and I bought the Remington rifled choke tube and it helped dramatically. All Remington chokes fit the Charles Daly shotguns for your future reference. I also found that it shot the Remington Buck Hammer slugs the best.
If only in 'fair' condition, around $200-$250. sales@countrygunsmith.net
Not recommended for full choke
It is possible to fire a shotgun without a choke, but it is highly not reccomended, and they don't cost that much If you select a barrel with no choke (cylinder) it will cause the pattern to be looser than for a barrel of a shotgun that has a tighter choke. The extreme is "full choke" which keeps a tight pattern out to the effective range. Full choke is typically used for waterfowl. A shotgun that is pressed into double duty (shot for small game and slugs for big game) would work well to have modified choke. Slugs have to be designed to fire through a full choke without blowing the barrel but you will certainly shorten the life of the barrel by firing slugs through a choked barrel. If you can afford an extra barrel, then use a cylinder (no choke) for slugs. Remington and other shotgun manufacturers have interchangeable choke tubes (see link) that allow you to screw in the appropriate choke for your quarry.
no