[Chaos]

I bought an 870 wingmaster that has a magazine tube extension on it. The spring kinda floats around in it and is a bit short, so I need a magazine follower in there. How long does it need to be? Its a 7 shot extension if that helps. I found one on fleabay that is 1.7" long, will that work?

 

[Harrysigafoo]

You need a longer spring to get the extra capacity. A longer follower will just get you back to a 5 shot mag.

 

[vapor trail]

contact WOLFF GUNSPRINGS NEWTON SQ.PA phone# 610 3599600 they should be able to fix you up

 

[Chaos]

The spring is only about an inch to an inch & a half short of the end. But thats short enough that there isn't enough pressure to feed the last round down far enough to cycle it.