Remington does not show a 870 rifle on their web site. Do you mean the 870 Shotgun? the Remington 870 is one of the most popular shotguns in the us. this shotgun ranges from $300 for the basic model to $1000 for the fancy Wingmaster edition
The best place to get information on the Remington 870 tactical rifle is on the Remington website. Another place to check is firearm forum where any questions or information can be shared through peers.
The Remington 870 is a type of shotgun which is known as "pump action". The Remington 870 requires the individual to "pump" the shotgun following each pull of the trigger. It is considered to have a slow rate of fire due to the pump action which is required.