[45R]

Is it pretty easy to install a Mag extension on an Older 870? I've read somewere about people having problems with the install.


Thanks


45R

[Dave McCracken]

The complications arise with the use of a mag tube with those dimples. Older 870s do not have them.

I've done two minus probs. If klutzy ol me can do it, chances are you can too.

[hillbilly]

Hey Dave, how did you take care of those politically correct dimples on the 870 mag tube?

Or did you convert older 870s without those annoying dimples?

hillbilly

[Dave McCracken]

Six 870s here, no dimples.

[Badger Arms]

Do a search to find out about how to remove the dimples. I used a 3/16" drill bit and then had to remove the rest of the dimple and burrs with a dremmel. Be careful to ensure that NONE of the metal projects into the magazine area after you're done.

BTW, the Dimples weren't a bow to political correctness, they were a cost-cutting measure. The dimples keep the plastic spring keeper from rotating which, in turn, keeps the magazine cap from auto-loosening when the gun is in use. The old design used a detent ball in the and ribs on the mag cap. The mag retainer was a separate steel insert. I frankly like the dimpled design from a purely engineering standpoint, but it does make modification of the gun difficult. To sum it up, old guns= ball detent, spring, and separate steel magazine spring keeper; new guns= plastic keeper, no ball detent, no spring, and the same function. Cheap is good.

[mnrivrat]

One other thing of note here is that after the removal of the dimples and installation of the mag extension you may need to use a barrel to extension clamp to keep the extension from rotating loose during firing. Not a problem with the old ball/detent system but has to be addressed with the newer style 870's when the plastic retainer is removed.