[britthunter]

DO they make an after market mag extentions for either the 912 or the i12

 

[Worc]

I'm not sure about the I-12. SRM (Surecycle) does make one for the 612,712, and 912. The same extention also fits the AL 48. My best guess is the I-12 would be the same thread as the other Franchi models but, I'm not sure.

http://www.surecycle.com/