Remington 870 police Carrier Dog Follower Spring (Carrier Latch Spring)

In the schematic, this part is #10.

You can easily improve the reliability of your Remington 870. Remington 870 Police shotguns have a different Carrier Latch Spring(Carrier Dog Follower Spring). It is from model 1100, & Rem 870 police

Standard Carrier Dog Follower Spring is silver, Remington 870 Police spring (from model 1100) is black:

A heavier carrier latch spring improves reliability and may resolve feeding problems if you experience them. The main purpose of this spring is to lift next round which comes out of a magazine tube. Remington 870 Police carrier latch spring (1100) will do this much better.