SBE I magazine extension

[black eagle]

I want to extend magazine capacity on my super black eagle. I've been watching this site and find it's members to be very knowledgable. I know benelli offers a four shot extender. Who makes the largest capacity/ best quality magazine tube extender and where do I get it? I saw a mag extender on shootersconnection.com made by daves metal works for an m190. do m1 90's have the same threads as a black eagle? Just wondering if anyone can help me with this?

thanks

[THUMPER]

Yes, the threads on the magazine end are the same on SBE I and M1 Super 90.

 

I have not used Dave's Metal Works extensions, but have used his bolt handle and extened safety, and quality was superb.