870 Nordic Extension Tube

[Rocket]

Hello,

I just bought my first Rem 870! . Super excited to start modding it and I'm just looking for a little help starting out.

I have the Remington 870 Express Synthetic (28" Barrel), and I want to add the Nordic extension magazine to it.
I believe to make it flush with the end of the barrel I need the +5 Tube. I've measured like the picture shows and
get 16". The only thing that is confusing me is the extension tube for the +5 measures 11.5" which wont be flush.

What am I missing?

[Synchronizor]

Not sure what's confusing you. It simply sounds like the +5 tube isn't long enough to reach the muzzle. 11.5" sounds about right for an extra 5 shells.

If you really want to match your barrel length, Nordic does sell a coupler that lets you chain multiple extension tubes together. In theory, you could use them to assemble an extension that's whatever length you want. A mag tube reaching all the way out to the muzzle of a 28" barrel would make the gun pretty nose-heavy, though. Unless you're setting up for competition, you may want to stick with just the +5 tube (or even shorter one).