ATA Arms S2 20 Gauge Semi-Auto Shotgun, 28″ Barrel, 5+1

The ATA Arms S2 is an inertia-operated semi-automatic 20 gauge shotgun with a 28″ barrel and a wood stock. It features a chrome-plated 7075-T6 aluminum receiver and a 3″ chamber. The design includes a fiber optic front sight and a conventional fixed sighting arrangement for straightforward target acquisition.

Key Specifications

• The action is Semi-Auto.
• The caliber/gauge is 20 Gauge.
• The barrel length is 28″.
• The chamber size is 3″.
• The capacity is 5 + 1.
• The receiver is Chrome Plated 7075-T6 Aluminum.
• The stock/grip is Wood Stock.
• The front sight is Fiber Optic Front.
• The listed shipping weight is 9.1.
• The ATF model designation is S2.

Compact and straightforward in layout, the S2 combines an inertia-driven semi-auto action with a traditional wood stock and modern receiver materials to deliver a balanced, reliable package for range use, training, and responsible home defense. Its simple controls, fiber optic front sight, and 5+1 capacity make it practical for shooters who prioritize dependability and classic ergonomics in a 20 gauge platform.