Justin, I would take your pistol and a magazine to a local gun store to do a comparison/test fit of some Taurus/Beretta Magazines. Taurus PT92 magazines with a lower notch should fit in an Italian Beretta. After all, the original Taurus pistols were made on original Beretta 92 tooling. The switch to a conventional triggerguard-vicinity magazine button came long after Taurus bought the facility Beretta built to fulfill their Brazilian military contracts. As such, Beretta no longer had a financial incentive to share the blueprints or tooling for any of the changes made in the 92S, 92SB and 92F. It is the later production Taurus PT92 pistol magazines that are unlikely to interchange with a 92SB or 92F.

Can you give us a model of the Beretta so we may be able to give you a more informed answer. James G assumed that it is a 92 variation but without more info that is just a wild guess