Designed for close-quarters engagements and tactical applications, the American Tactical Imports BullDog semi-automatic shotgun features a new-age look and modular design, making it an ideal choice for all types of gun owners. This 12-gauge shotgun has an 18.5″ barrel, 3-inch chamber, quick acquisition flip-up sights, and a 3-piece choke tube set for avid shooters. In addition, the ATI Bulldog is equipped with Picatinny and MLOK rails and with an AR-style charging handle, especially for tactical operations. Durable and reliable, it also has an adjustable cheek rest and a Picatinny cutout at the base of the magazine. This feature allows you to insert a spare full or empty magazine onto the bottom Picatinny rail and use the magazine as a foregrip. With the help of an easy access quick release button, you can quickly and efficiently change the mags.