There are three types of sear springs for Remington 870 shotguns:
-standard (4 to 5 lbs)
-competition (light pull, 3 pound)
-police (heavy, trigger pull between 5 and 8 lbs)

Remington 870 Standard Sear Spring

Let’s start with a standard sear spring. It has silver color, trigger pull is between 4 and 5 lbs. It is installed on all Remington 870 Express shotguns. There is nothing wrong with it, it works perfectly.

Remington part number: F17518

Remington 870 Standard Sear Springs

Remington 870 Standard Sear Springs

Remington 870 Competition Light Sear Spring

Second sear spring for Remington 870 is competition light pull sear spring. It provides you with light pull, 3 pound. It is used for competition shooting. It has noticeable difference on trigger pull.

This sear spring is good for competition or trap shooting when you need to make numerous shots fast.

Remington part number: F91771

Remington 870 Competition Sear Spring

You can get light sear spring here: http://tinyurl.com/bssuypz

Remington 870 Police Heavy Sear Spring

Police sear spring is heavy, trigger pull between 5 and 8 lbs. It provides reliable, positive trigger pull. The difference is noticeable. I think that Police sear spring is safer because it requires more efforts to pull a trigger.

Remington part number: F97642

Remington 870 Police Sear Springs

Remington 870 Police Sear Springs

You can get heavy sear spring here: http://tinyurl.com/cbjqwqf

Remington 870 Sear Spring Replacement

What sear spring do you use on your Remington 870?