I was at the store yesterday to purchase a jellyhead for the benelli m2. I found that the one labeled beretta/benelli does not fit. I assume it fits the sbe/m1. they did not have any JH that was marked for SBE2/M2. There was one on the shelf for a Beretta extrema 1 & 2. On the back of that package it says it is interchangable with the optima plus choke tubes. The salesman took it out and it screwed right into a M2 he had there. It seems to fit perfect. I havenot yet shot it. I just dont want to do any damage to the barrel. On Primos web site it states the choke for the SBE2/M2 is no. 6912. this choke is a 6913. Any help would be appreciated.