The AYA No. 4 is the entry-level AYA side-by-side, using a Holland and Holland-style anson and deeley box-lock rather than the sidelocks of the No. 2. A traditional Spanish field gun at an accessible price. Type: Shotgun Action: Side-by-Side Caliber: 12 Gauge Capacity: 2 Year introduced: 1945, Spain Weight: 7.1 oz Overall length: 45" Status: Active Intended use: Hunting, Upland, Driven Game, Upland Hunting, Field