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This article, M870, is a stub and may require expansion. Please help out by editing the page.
The Remington Model 870 is a pump-action shotgun manufactured by Remington Arms. The Model 870 is one of the most, if not the most widely used shotgun in the world. The shotgun to only second this weapon in terms of popularity is the Mossberg 500. 
There is another variant of the M870 in the Rainbow Six universe. This variant is the 870MCS. The M870 in Rainbow Six Siege appears to be a custom short variant of the original weapon.
The M870 is categorized as a shotgun in the Rainbow Six universe. The M870 only appears in Tom Clancy's Rainbow Six Siege, while the 870MCS appears in both Tom Clancy's Rainbow Six: Vegas and Tom Clancy's Rainbow Six: Vegas 2.
Tom Clancy's Rainbow Six: VegasEdit
The 870MCS is a weapon featured in the Tom Clancy's Rainbow Six: Vegas.
Tom Clancy's Rainbow Six: Vegas 2Edit
The 870MCS is a weapon featured in the Tom Clancy's Rainbow Six: Vegas 2. Since Vegas 1 and 2 share the same engine and models, the weapon appears in the same configuration as its Vegas 1 counterpart.
Tom Clancy's Rainbow Six SiegeEdit
- "12-gauge pump action shotgun. Favored by GSG 9. Large barrel allows for enhanced range."
— In-game description
One of the most powerful pump action shotguns available, the M870 packs one hell of a punch at close range and can kill a victim outright if all pellets connect. This shotgun also has a quicker pump-action than the others.