What's in the Box E.R Amantino Coach 12 Gauge Shotgun Owner's Manual Stoeger Coach Guns single and double trigger shotguns are based on the Old West stagecoach guard s shotgun of choice. The handsome and affordable single- and double-trigger scatterguns pack a potent punch. All of these coach guns are ideal for Cowboy Action shooting and home defense. Firearm Specifications Gauge: 12 Barrel Length: 20 in Overall Length: 36.5 in. Trigger: Double Chamber: 2.75 in, 3 in Overall Length: in Weight: 6.5 lbs. Sight: Brass Bead Stock: A Grade Finish: Blued/Brown