ATA Arms S4 | 12 Gauge Semi-Auto | 28″ Barrel | 5+1

The ATA Arms S4 is a semi-automatic 12 gauge shotgun built around a gas-operated action and a durable synthetic stock. Designed with a Picatinny rail and adjustable sights, it suits structured tactical training and routine range practice. The firearm’s configuration emphasizes repeatable operation and straightforward sighting for multi-position work.

Product Specifications

• The action is Semi-Auto.
• The caliber/gauge is 12 Gauge.
• The barrel measures 28″.
• The overall length is 40.5″.
• The capacity is 5 + 1.
• The chamber size is 3″.
• The weight is 8.3 lbs.
• The finish is Flat Dark Earth Cerakote.
• The grip material is Black Synthetic.
• The grip type is Pistol Grip.
• The sights are Adjustable Sights.
• An additional feature includes a Picatinny Rail.
• The ATF model is listed as S4.
• The ATF manufacturer is AK-SA ARMS/FOURPEAKSIMPORTSLLC.
• The UPC is 810065120601.

As configured, this shotgun is aimed at users who prioritize a reliable semi-automatic action and modular mounting options for optics or accessories. It is well suited to formal tactical training drills and recreational range sessions where quick follow-up shots and adjustable sighting are useful.