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
Scout The Trail To A General Purpose Rifle
The search for a universal longarm—one suitable for both hunting and defensive scenarios—is a trek that involves a bit of doubling back.
Trijicon Releases Green-Dot RMR
For the first time, the Trijicon RMR will now be available with a green aiming dot, providing some benefits to shooters with astigmatism and red-green color blindness.
The Armed Citizen® Sept. 15, 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.
Firearm Industry Companies Consolidate, Others Close Doors In 2025
This year has already seen some big changes in the firearm industry. They don’t quite reach the tectonic shift in 2020, when legendary firms owned by Remington Outdoor were auctioned off, but there have still been some notable shifts within the industry in 2025.
Preview: Uni-Loader
The easy-to-use Uni-Loader can save high-volume shooters a lot of time and finger pain.
CZ 600+ Introduces Switch-Barrel Capability
In 2025, CZ USA expanded its 600 series rifle lineup with the CZ 600+, a design that delivers on the company's promise of a switch-barrel platform.
Interests
SECTIONS
IN THE SPOTLIGHT
EXPLORE MORE NRA PUBLICATIONS
