Remington M870

The Remington M870 is a pump action 12 gauge shotgun, known for it's reliable and simple action. It is one of the less expensive shotguns, and one of the best selling in the US. A number of variants are available, from a corrosion resistant Mariner, to the budget Wingmaster and Magnum Express. The 870 shares many parts with its semi automatic cousin, the Remington M1100.

Resident Evil
The M870 is the only shotgun featured in the original Resident Evil. In the Remake, it is replaced by the Winchester 1897.

Resident Evil 2
A pistol grip version of the M870 is available under the designation of the M1100-P. Later in the game, the player can find a set of upgrade parts consisting of a stock, extended barrel, and magazine extension. Combining these parts with the 1100-P converts it to the semi-automatic Remington 1100.

Resident Evil 4
The first shotgun in Resident Evil 4, the M870 is available for purchase from the Merchant for 20,000 pesetas. However, a free shotgun is available on the second floor of the house in the village. The Shotgun is powerful at close range, but damage and stopping power decreases over range. It takes up 16 spaces (8x2) of Leon's inventory.

To start, it has a firepower of 4.0, can fire every 1.53 seconds, takes 3.03 seconds to reload, and has a capacity of 6 shotgun shells.

Fully upgraded, it has a firepower of 8.0, can fire every 1.53 seconds, takes 1.50 seconds to reload, and has a capacity of 18 shells. The Shotgun costs 277,000 pesetas to fully upgrade (257,000 if the player stole the Shotgun in the village instead of buying one).

Its exclusive allows it to have a firepower of 6.0 at long range. This interesting mechanic means that one pellet can cause substantial damage normally limited to the shotgun's close range shooting.

The Basic Shotgun is useful at the beginning of the game, where enemies are often grouped together. It becomes rather unwieldy when faced with most bosses, due to its poor range and slow rate of fire.

Resident Evil Outbreak: File 2
The M870 appears in the second Outbreak game as the Shotgun E.

Resident Evil: The Umbrella Chronicles
The M870 is also featured in Resident Evil: The Umbrella Chronicles as the "Basic Shotgun".