The Winchester SX4 in 20 gauge (brand part no. 511205690) is a semi-automatic shotgun built around a 24-inch barrel with a 3-inch chamber, giving hunters a quick-handling platform that builds on the proven Super X3 Black Shadow with improved function and ergonomics. Winchester finishes this SX4 in matte black synthetic and equips it with a TruGlo fiber optic front sight, shipping with three Invector-Plus chokes. Among semi-auto shotguns in the semi-auto shotguns category, this SX4 favors hunters who want a shorter-barreled, quick-swinging 20 gauge.

Key Specifications

• Chambered in 20 gauge with a 3-inch chamber.
• Operates as a semi-automatic shotgun.
• Features a 24-inch barrel.
• Feeds from a tube magazine with a 3+1 capacity.
• Ships with three Invector-Plus chokes.
• Equipped with a TruGlo fiber optic front sight.
• Finished with a black synthetic stock.
• Back-bored barrel with a vent rib delivers dense, consistent shot patterns.
• Hard chrome-plated chamber and bore resist wear and corrosion.
• Ships at approximately 9 pounds.

Frequently Asked Questions

What chokes are included? Three Invector-Plus chokes ship with the gun.

Why is the barrel shorter on this SX4? The 24-inch barrel gives quicker handling in the field compared to longer-barreled variants.

Buy the Winchester SX4 20 Gauge Shotgun

A quick-swinging, shorter-barreled 20 gauge is exactly what this SX4 delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.