Originally Posted by Runn0r
I have a Mossberg 590 which I chose over the 870 due to ejection problems. The 870 is a fine piece of engineering but for some reason it has a reputation for catching casings in the ejection slot by the lip of the metal part on the way out. Ive witnessed this in my friends new 870 which does not do it very often but does suffer from this issue. One other reason I chose the Mossberg 590 is because much of the Military chose it after having sand become a problem in their 870's and Benelli's. The mossberg is a bit more loose and seems to cycle well in sandy/dirty conditions. I like to compare the two as follows: Mossberg 590 is like an AK47 and the Remington 870 is like an AR15 the way they are machined. You cant beat a shotgun for home defense, as it is (in my opinion) the most devastating close range weapon with the right ammo. The other nice thing about tactical shotguns is that you can shoot almost any type of ammo from birdshot to slugs or even (dragons breath) since they are not threaded for a choke. Good luck!
IMO this is the worse reason not to buy a 870, the most sold shotgun in the world by many times over for over 50 years, there is no issue. Some models are better then others. Mossy 590 have just as many ejection issues as any OTHER shotgun out there, due to cheap ammo, short stroking, and any other of bad proper usage. And there are lemons out there.
Both the 590 and 870 are fantastic guns, both have weakness. The 590 is aluminum receiver where the 870 is steel, they both have distinctive different action. It's the action and how the gun feels that should win you over between the 590 and 870. A lot of people prefer the action on the 870 due to the steel receiver, feels smooth with less kick and easier control. I have owned both and now just own an 870.
The 500, 590 vs 870 argument is never-ending. But all shotguns can have issues, no way the 870 is known as unreliable, statistically its the most reliable shotgun in the world.
Army not going with the Remington says nothing, its easier to break down on the field and MUCH cheaper then the Remington contract, so they went with the cheaper contract.
Most police, FBI, SWAT, etc will use a mix of mossy and Remington models. They are both really good guns.