Here is beautiful Remington 870 shotgun which I saw on a shooting range recently. It has a lot of different tactical upgrades and accessories for Remington 870 shotgun.
Remington 870 Triple Rail Forend from Command Arms:
Nice looking aftermarket polymer forend with non-slip texture. Enables you to install tactical accessories you may need: laser, light, etc.
Mesa Tactical 4-Round Shotshell Holder for Remington 870:
Mesa Tactical shell holders are the best on the market and enable you to make quick tactical reloads. Shotguns usually have very limited number of ammo, so this upgrade is recommended for any Remington 870 owner. When you grab your shotgun in the night you only have ammo which is on shotgun and in shotgun.
Magpul CTR Stock for Remington 870:
Very good stock from Magpul. Stocks from Magpul are famous for quality and durability. The price is good too. You can rarely see AR-15 style Magpul stock on Remington 870 shotguns but it looks good and gives you additional features.
Nordic Components +3 Extension:
Nordic Components magazine extension is one of the best extensions available for Remington 870. Highly recommended, high-quality product. Enables you to have more ammo in your shotgun.
Vang Comp Systems Oversized Safety Button:
VCS safety is a very popular aftermarket safety button. It is easy to disengage oversized safety even under stress or in winter gloves. Very useful for home defense and tactical Remington 870 shotguns.