NRA Gun of the Week: Standard Mfg. S333 Thunderstruck

by
posted on October 30, 2020
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
Standard Mfg. has brought innovative and defense-oriented firearms to market that diverge from its sister company’s well-beaten path. The S333 Thunderstruck revolver is another example of unique design from the Connecticut-based manufacturer. The S333 is a twin-barreled revolver with capacity for eight rounds of .22 WMR and has an overall weight of 18 ozs.

Double barrel muzzle view revolver

The S333 revolver is designed to provided maximum and controllable firepower in a fairly compact package—the gun utilizes two barrels of which a cylinder presents a cartridge for each. Users are required two fingers for the double-action-only trigger press that ignites two magnum rimfire cartridges. Standard Mfg. provides a passive transfer bar safety mechanism to prevent unintentional discharge.

black revolver trigger and grip white background

A cylinder release is found on the left side of the frame and the cylinder was noted to swing out freely. Topping the eight-shot revolver are a set of aiming reference marks. Our testers found the gun’s grooved polymer stock and frame design to point instinctively on target and recoil was noted to be minimal. Company literature states the barrels are regulated for 40-grain loads from CCI and PMC and that variations in other ammunition can cause problems with accuracy.

black revolver in hand

Watch our NRA Gun of the Week video above to learn more about the Standard Manufacturing S333 Thunderstruck revolver.

Standard Manufacturing S333 Thunderstruck Specifications
Manufacturer: Standard Mfg. Co. LLC.
Action Type: double-action, double-barrel rimfire revolver
Chambering: .22 WMR
Barrels: 1.25” steel
Frame: 7075 aluminum, anodized finish
Sights: fixed, three-red dot, square-note rear, post front
Weight: 18 oz.
MSRP: $429

Further Reading:
Standard Manufacturing STD-15 Model A

Tested: Standard Mfg. 1911 Case Colored #1 Engraved Pistol

Bill Ruger's .22 Pistol

Identifying Mauser Markings

Extras:






Latest

Guns Ai F
Guns Ai F

Does AI Pose a Threat to the 2nd Amendment?

Several recent studies highlighted AI's propensity to dispense anti-Second Amendment propaganda, and more alarmingly, AI also seems willing to sacrifice human lives to avoid being taken offline.

I Have This Old Gun: Winchester 1886 Saddle-Ring Carbine

As our country was celebrating its centennial 150 years ago, Oliver Winchester dominated the lever-action market with his Models 1866 and 1873 and was just introducing the Model 1876.

First Look: Gunsmoke Arsenal Tactical Cigar Protection

Looking for a smoke after smoking some targets? The Tactical Cigar Protection case from Gunsmoke Arsenal keeps your stogie secured until you're ready to relax.

Making a Match-Ready M1 Garand

For decades, fans of the M1 Garand have gone to Camp Perry to shoot the John C. Garand match, a test of their shooting skills and rifles. Here, one M1 Garand enthusiast prepares his rifle and ammo for the shoot.

Will the USPS Allow Handguns to Be Mailed?

The U.S. Postal Service (USPS) on April 2, 2026, published a proposed rule that would permit the mailing of lawful handguns through the U.S. mail for the first time in nearly a century.

The Trijicon AccuPoint 1-8x24 mm: A Flexible Optic for Dangerous Game Hunting

Trijicon is probably best known for its military and law-enforcement optics, but the company is also serious about its commercial line of riflescopes designed for hunting.

Interests



Get the best of American Rifleman delivered to your inbox.