The bull-dog semi-automatic shotgun features a new age look and modular design which makes it a perfect fit for all types of gun owners.From the quick acquisition flip up sights, 3" chamber and 3-piece choke tube set for our avid shot gun users, to the ar style charging handle, picatinny and mlok rails for tactical gun users.Also featuring an adjustable cheek rest and a picatinny cut out at the base of the magazine, this allows you to slide your spare full or empty magazine onto the bottom picatinny rail and use the magazine as a fore grip.With an easy access quick release button to change mags fast and efficiently.Action: Semi-AutoGauge: 20 GaugeBarrel Length: 16"Capacity: 5+1Chamber: 3"Stock Description: Fixed BullpupSights: Adjustable OpenChokes Included: 3Barrel Length Range: 16" to 16.99"Hand: RightStock Finish Group: BlackMetal Finish Group: Blued/Black