This is the ATI Bulldog 20 gauge 10 round magazine.

Built from rugged steel, this magazine is designed to handle tough conditions while maintaining reliable performance. The anti-tilt polymer follower ensures smooth feeding for those 20-gauge shells, while the witness holes let you easily monitor your round count. With a generous 10-round capacity, it’s perfect for extended shooting sessions or home defense scenarios. Engineered for a seamless fit with the ATI Bulldog 20 gauge and other AR-style 20-gauge shotguns, this magazine combines durability and practicality for dependable performance every time.