The Standard Manufacturing S333 Gen II Handgun .22 WMR 8rds Capacity 1.5″ Barrel Black is a purpose-built defensive tool that fires two rounds of .22 Winchester Magnum Rimfire with every trigger pull. That means eight rounds downrange in roughly three seconds — four pulls, two holes each. It’s a double-barrel, double-action revolver designed to put more lead on target faster than any single-barrel .22 on the market. No frills, no gimmicks. Just raw split-second firepower for close-quarters personal protection.
| Manufacturer | Standard Manufacturing |
|---|---|
| Model | S333 Gen II Thunderstruck |
| Material | 7075 Aircraft-Grade Aluminum Frame, High-Strength Steel Cylinder |
| Compatibility | .22 Winchester Magnum Rimfire (.22 WMR) ammunition |
| Finish | Black Anodized |
| Weight | Approximately 11.2 oz (empty, per manufacturer specs) |
| Condition | New |
Key Features
- Dual-Barrel, Dual-Action System — Fires two rounds simultaneously with each trigger stroke. This matters because it doubles your hit probability in a single trigger press, giving you immediate incapacitating potential during a high-stress encounter.
- 8-Round Capacity in Four Pulls — Four trigger presses deliver eight .22 WMR projectiles. Why it matters: you get a full defensive load in less than three seconds, outpacing most subcompact semi-autos in raw round delivery.
- Integral Articulated Trigger Safety & Transfer Bar — Prevents accidental discharge if the revolver is dropped or the trigger is snagged. Why it matters: this is a carry gun — you need absolute drop-safety when it’s stuffed in a waistband or a coat pocket.
- 7075 Aircraft-Grade Aluminum Frame — Stronger than standard 6061 aluminum, with a hard anodized black finish. Why it matters: you get a lightweight (11.2 oz) carry piece that resists corrosion and stands up to daily carry wear.
- High-Strength Steel Cylinder — Machined from heat-treated steel to handle the .22 WMR pressure curve. Why it matters: reliability under rapid fire — no cylinder swelling, no timing issues after repeated strings.
Who It’s For
This revolver is built for the concealed carrier who wants extreme speed-on-target without the recoil of a 9mm or .38 Special. It fits shooters with limited hand strength — arthritis, reduced grip power — who still need a capable defensive firearm. It also appeals to anyone who wants a deep-concealment backup gun that can deliver a fast volley of fire at bad-breath distances. Home defense buyers who keep a gun in a nightstand drawer will appreciate the simplicity: no slide to rack, no safety to fumble with, just point and press.
Pros & Cons
- Pro: Extremely fast follow-up shots — two rounds per pull means you don’t need to reacquire a sight picture between shots. Con: The double-barrel design limits accuracy beyond 15 yards; this is a contact-to-7-yard gun, not a target pistol.
- Pro: Lightweight and pocket-friendly at just over 11 ounces. Con: .22 WMR rimfire ammunition can be less reliable than centerfire rounds; use high-quality defensive loads and test thoroughly.
- Pro: Simple manual of arms — no slide, no external safety, no magazine. Con: The double-action-only trigger pull is heavy (around 9-10 lbs), which can affect accuracy for new shooters.
Comparison: S333 Gen II vs. Zev Technologies OZ9 vs. Agency Arms Glock 19
| Feature | Standard Manufacturing S333 Gen II | Zev Technologies OZ9 | Agency Arms Glock 19 |
|---|---|---|---|
| Caliber | .22 WMR | 9mm | 9mm |
| Capacity | 8 rounds (4 pulls) | 17+1 | 15+1 |
| Weight (empty) | 11.2 oz | ~24 oz | ~22 oz |
| Trigger Type | Double-action revolver | Striker-fired, adjustable | Striker-fired, drop-in |
| Barrel Length | 1.5″ | 4.49″ | 4.02″ |
| Best Use | Deep concealment / backup | Competition / duty | Duty / concealed carry |
The S333 Gen II is not a direct competitor to Zev or Agency pistols — those are full-size, centerfire handguns for primary carry or competition. The S333 fills a different niche: a lightweight, ultra-fast volley gun for backup or primary carry when even a subcompact 9mm feels too heavy.
FAQ
What ammunition should I use in the S333 Gen II?
Standard Manufacturing recommends high-velocity .22 WMR loads from reputable brands like CCI, Winchester, or Hornady. Avoid subsonic or low-velocity rounds — they may not cycle reliably in the dual-barrel system. Test a box of your chosen defense load before carrying.
Is the S333 Gen II legal in all states?
Because it is a revolver (no magazine), it is generally legal in states with magazine capacity restrictions. However, check your local laws regarding rimfire handguns and barrel length. The 1.5″ barrel complies with federal minimums for handguns.
How do I clean the dual barrels?
Use a .22 caliber bore brush and solvent on each barrel separately. The cylinder can be cleaned with a nylon brush. Per Standard Manufacturing specs, avoid using abrasive materials on the anodized frame. Keep the transfer bar area free of debris.
Can I dry-fire the S333 Gen II?
Yes, the transfer bar safety system allows dry-fire without damage. Use snap caps if you want to protect the firing pins, but the revolver is designed to handle occasional dry practice.
Buy the Standard Manufacturing S333 Gen II Today
This is a niche tool that does one thing exceptionally well: put two rounds on target fast. If you need a deep-concealment backup or a primary gun for someone who can’t manage a heavy trigger pull, the S333 Gen II is worth serious consideration. According to industry data, rimfire handguns account for roughly 12% of the concealed carry market — but no other rimfire revolver delivers this kind of split-second firepower. Order yours now and see why the Thunderstruck is earning a reputation among serious CCW holders.
- ✅ Nationwide delivery — ships to all 50 states
- ✅ Ships in 1-2 business days from order
- ✅ 30-day return policy on unopened/unused items
- ✅ Secure checkout with encrypted payment
Last updated: April 2026
Browse more: Revolvers | Concealed Carry Handguns | Rimfire Pistols
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