This is a Beretta known as the Silver Pigeon I chambered in 28 Gauge, model J686FM6.
The legendary 686 action is a long-standing favorite among hunters and competitive shooters. It features two conical locking lugs at mid-action" right between the barrels" giving it great locking strength and durability.
Features:
Two conical locking lugs
Low profile receiver
Excellent locking strength and durability