Stock up with factory-original Mags for your ATI Bulldog Bullpup Shotgun. The Magazine features a Picatinny cutout on the base of the magazine for rail storage that doubles as a foregrip. Fits the ATI Bulldog Bullpup Shotgun 12-gauge Accepts 3" shells 10 rounds Picatinny rail on base for storage on a rail Doubles as a foregrip when stored on a rail Order today!