The 870 Remington shotgun used to be a popular candidate for a "release" trigger.
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 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.
Pump action shotgun
100-1000 depending on specifics
$350
Pretty cheap. About 300 or a little more.
Remington 870 Express Super Magnum.
Around 300 dollaroos.
In 1950 Remington introduced fifteen versions of the Model 870 shotgun, in 12, 16 and 20 gauges.
Visit Remington's web site.
100-300 or so