There are many places one might go to find a review for the Remington 870 Express. The most reputable resource one has is the Consumer Reports website.
Midwayusa.com
Yes.
The Express version of the 870 Remington is normally either 12 or 20 gauge. Gauge desigantion is marked on the barrels left, rear end.
About $325-$350
Depends on what it is choked.
The Remington 870 Express shotgun was first introduced in 1950, and it has been produced in various models and configurations since then. The serial number of a specific Remington 870 can help determine its year of manufacture, as Remington has used a date code system for serial numbers. If you have a particular serial number, you can refer to Remington's records or online resources to find the corresponding year.
the express is the cheaper model Remington came out with. There are many more models like the tactical ones and the wingmaster. The wingmaster is one of the better quality models.
The 870 Wingmaster is still made in .410
100-375 USD
Around $350 depending condition.
No requirement that it has to be.
100-400 USD