As the legacy of Winchester’s Super X4 series of gas-piston-operated shotguns has grown, it was only a matter of time before the company scaled down and chambered the 12-ga. platform for 20-ga. shotshells. Released at SHOT Show 2019, the SX4 20-ga. shotgun provides options for three barrel lengths, 24”, 26” and 28”, all of which provide a 1/4" vent rib and fiber-optic sight bead near the muzzle. SX4 barrels additionally feature a back-bore treatment for improved pattern consistency. Invector-plus chokes come standard, as well as an Inflex 1 recoil pad to mitigate felt recoil. To learn more about the Winchester Repeating Arms SX4 20-ga. shotgun, watch our NRA Gun of the Week video hosted by American Rifleman’s Christopher Olsen.
Specifications:
Manufacturer: Winchester Repeating Arms
Model: Super X4 (SX4)
Action Type: gas-piston-operated semi-automatic shotgun
Gauge: 20; 3”
Barrel: 24”, chrome-plated steel
Sights: fiber-optic front
Trigger: 6-lb., 3-oz. pull
Magazine: four-round tubular
Stock: black composite
Finish: matte black
Weight: 6 lbs. 8 ozs.
MSRP: $940
Additional Reading:
Tested: Winchester Super X4 Shotgun
A Look Back at the Winchester Model 12 Shotgun
Combat Shotguns of the Vietnam War
I Have This Old Gun... Winchester Model 1897 “Trench Gun”
NRA Gun of the Week: Winchester Repeating Arms SX4 20-ga. Shotgun
More like this from around the NRA
Latest
The Elusive Finnish Mausers
In the 1920s, the Finnish Shooting Sport Federation sought to replace the military’s venerable Mosin-Nagant. Its attempts to introduce Mauser target rifles as service rifles were eventually thwarted in the 1930s by design limitations and budgets.
The Armed Citizen® Dec. 22, 2025
Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.
Rifleman Q&A: Point Of Hold
Q: I have always been a rifle and handgun shooter, with little shotgun experience, and I am a little confused about the “point of hold” shown in the pattern illustrations of our magazine.
Preview: MTM Case-Gard Suppressor Protector Case
Secure, rugged and inexpensive, the Suppressor Protector Case by MTM Case-Gard is a convenient way to transport or store as many as three (cooled) silencers up to 10" in length.
A Bigger Rhino: The Chiappa 60DS L-Frame In .44 Mag.
The Chiappa Rhino revolver design is "anything but ordinary," and for 2026, the company is upscaling the concept to handle the .44 Magnum cartridge.
Preview: Magpul MOE QD Bipod For M-Lok
Simple, inexpensive and supremely easy to use, the new MOE QD Bipod For M-Lok is Magpul’s fastest-mounting bipod model by far, as it takes only about five seconds for the practiced hand to securely affix it to an M-Lok-clad fore-end.
Interests
SECTIONS
IN THE SPOTLIGHT
EXPLORE MORE NRA PUBLICATIONS
