3: Beretta A400 Extreme Unico in 12 Gauge with 28" Barrel. This semi-auto shotgun features a 28" barrel, a 3.5" chamber, gas operated featuring new Beretta "Blink" system, aluminum alloy receiver, OBF-HP chokes, Kick-Off recoil system included, 100% real tree camo coverage and a fiber optic front sight. Estimated Value: Low: $1,600 High: $1,800