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
Rifleman Q&A: Crates Of Cartridge Curiosities
"I have in my possession two interesting wooden boxes containing two sealed ammunition cans each. I initially assumed the cartridges to be corrosive-primed and marked them as such with a paint pen, but lately I am not so sure."
Preview: Spyderco Police Model
The all-stainless-steel Spyderco Police Model folding knife is an instantly recognizable design that, according to the company, “was developed in the early 1980s to meet the demanding needs of law-enforcement professionals.”
The TriStar Arms APOC: Familiar & Affordable
Glock-inspired handgun designs have become one of the most popular corners of the firearm market, and TriStar Arms is the latest to throw its hat into the ring with the affordable APOC.
Preview: Linos Sheathworks Custom Kydex Knife Sheaths
Shown here with a TOPS Apache Falcon knife, Linos Sheathworks’ custom Kydex sheaths are available to fit a wide variety of popular fixed-blade and folding knife models from other major brands—all without the need to ship the host knife to the company.
Gun Of The Week: Ruger LCP MAX Manual Safety
Ruger introduced its LCP MAX in 2021, but in recent years, the company has expanded the line with new models, including this two-tone version equipped with a manual thumb safety.
The Armed Citizen® Nov. 28, 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.
Interests
SECTIONS
IN THE SPOTLIGHT
EXPLORE MORE NRA PUBLICATIONS
