Here's the differences between the Wingmaster, the budget Express, and the Police:
The Express is Remington's "budget" gun, made to compete with the cheaper to make Winchester and Mossberg guns.
The Wingmaster is Remington's "Cadillac" top-of-the-line sporting gun.
The Police is a Wingmaster with a dull finish and is a much more carefully inspected and built gun.
How Remington lowered the Express price was to reduce hand labor to a bare minimum, and to eliminate much of the polishing and de-burring the better quality Wingmaster and Police guns get.
The Express is basically the same forged and milled steel receiver and heavy-duty internals gun the better 870's are, just in a rougher, less well finished form with plastic and MIM parts.
The Express Model has:
A plastic trigger group.
The dimples in the mag tube and the new style plastic magazine retention system, EXCEPT on the extended magazine version, which does NOT have the dimples.
A rougher finish inside and outside, with machine marks and some burrs left.
A rougher, bead blasted blue job.
A less polished bore.
A two piece sleeved barrel. (not 100% sure about this)
Hardwood or synthetic stock, with a sporting-length fore end and pressed-in checkering.
The Defense version has 18", Cylinder bore barrel, with a bead sight.
Some Metal Injection Molded (MIM) parts, like the extractor.
Has the locking safety button.
The Wingmaster has:
An aluminum trigger group.
The old style magazine retention system.
A much smoother finish inside and out, no machine marks or burrs.
The Wingmaster gun receives a higher level of inspection and finishing.
A fine, commercial polished blue finish.
A polished bore.
A chrome plated bolt.
A one piece barrel.
Walnut stocks with the famous "Bowling Pin" finish in gloss or satin. and better checkering.
Wide choices in barrel lengths and choke options.
No use of MIM parts, the extractor is milled.
Has the locking safety button.
The Wingmaster is the full top-of-the-line commercial Remington pump gun, and is priced accordingly.
The 870 Police has:
An aluminum trigger group.
The old style magazine retention system.
A much smoother finish inside and out, no machine marks or burrs.
The Police gun receives a higher level of inspection and finishing, and is built in a special area of the factory. The gun receives much more hand inspection to insure total reliability.
A military-grade parkerized finish.
A polished bore.
A one piece barrel.
Walnut or synthetic stock, with a short police-length fore end.
The Remington “R3” super recoil pad that reduces felt recoil by 30%.
Choices in different stocks, including Speed-feed, and others.
18" to 20" improved cylinder barrel, with a wide choice in sights, including rifle, ghost ring, and luminous.
Police options like magazine extenders, forearms with built-in lights, and sling swivels.
Heavy-duty magazine spring.
Heavy-duty trigger-sear spring.
Sling swivel mounts.
No use of MIM parts, the extractor is milled.
The lockable safety is not used on the Police.
The Express is a "bottom of the line" budget gun, the Wingmaster is a "top of the line" sporting gun, the Police is the top-of-the-line in defense guns.
The 870's are generally considered to be the finest quality pump gun made.
