The Century Arms Centurion A4 in 12 gauge (brand part no. SG8871GR-N) is a semi-automatic tactical shotgun built around an 18.5-inch barrel, cycling both 2.75-inch and 3-inch shells for personal defense and home security use. Century Arms finishes the Centurion A4 in OD Green over a synthetic stock and tops it with ghost ring-style sights for fast, precise target acquisition. Among semi-auto shotguns in the semi-auto shotguns category, the Centurion A4 favors shooters who want a tactical-style shotgun with modern ergonomics.

Key Specifications

• Chambered in 12 gauge.
• Cycles both 2.75-inch and 3-inch shells.
• Features a 20-inch barrel.
• Feeds from a detachable magazine with a 5+1 capacity.
• Topped with a ghost ring rear sight.
• Paired with a fiber-optic front sight.
• Built with a synthetic stock.
• Finished in OD Green.
• Fitted with a Picatinny top rail for mounting optics.

Frequently Asked Questions

What shells can it cycle? Both 2.75-inch and 3-inch 12 gauge shells.

What is the magazine like? A detachable box magazine holding 5+1 rounds, for easy reloads.

Buy the Century Arms Centurion A4 12 Gauge OD Green

A tactical-style 12 gauge with modern ergonomics is exactly what the Centurion A4 delivers. As soon as it’s ready to ship, order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.