The Winchester SX4 12 Gauge with a 3.5-inch chamber and 28-inch barrel is an all-black, gas-operated autoloader built for hunters who want magnum capability in a non-glare package (Winchester part no. 511205292). Winchester equips it with a black synthetic stock and forearm, a matte black aluminum alloy receiver and the self-adjusting Active Valve system. A TRUGLO long bead fiber-optic front sight sits on a ventilated rib, and three Invector-Plus chokes come in the box. The matte black finish is meant to keep glare from spooking game, and the larger controls are easy to work in damp or cold weather.

Key Specifications

• The gauge is 12 gauge, the most widely stocked shotshell gauge for waterfowl and turkey.
• The chamber is 3.5 inches, the magnum length that handles the longest shells this gauge offers.
• The barrel is 28 inches long, which gives a smooth swing and a long sight plane.
• Magazine capacity is 4 rounds of 2-3/4-inch shells in a tubular magazine, per Winchester’s specification table.
• The shotgun weighs 7 pounds 2 ounces, a manageable carry for a magnum-capable autoloader.
• The stock and forearm are black synthetic with textured gripping panels, so they stay secure in the hand.
• The aluminum alloy receiver has a matte black finish, a non-glare surface that helps keep the gun from spooking game.
• Three Invector-Plus flush chokes (Full, Modified and Improved Cylinder) ship with a flat wrench for matching the pattern to the load.
• The front sight is a TRUGLO long bead fiber-optic design, which gives a bright, precise sight picture.
• A ventilated rib gives a smooth, clean sighting plane and helps reduce weight on the barrel.

Frequently Asked Questions

Is the safety reversible? Yes. Winchester lists a reversible crossbolt safety on the SX4, along with a larger bolt handle and an oversize bolt release button for easier operation.

Does it shoot 3-inch shells? Winchester lists a 3.5-inch chamber for this model, and its magazine capacity of four is figured with 2-3/4-inch shells.

What comes with the shotgun? Three Invector-Plus flush choke tubes (Full, Modified and Improved Cylinder) and a flat choke wrench are included.

Buy the Winchester SX4 12 Gauge Shotgun, 3.5-Inch Chamber, 28-Inch, Matte Black Synthetic, 4-Round

The SX4 in plain black is the no-nonsense version of Winchester’s gas gun: a synthetic stock, a matte receiver and the Active Valve system that cycles a wide range of loads. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse more semi-auto shotguns while you are here.