Description
A 9mm J-Frame is one of those ideas that just makes sense once you shoot one. The Smith & Wesson Model 940-3 revives a fan-favorite concept: a small, all-stainless, double-action-only revolver chambered for the most common defensive cartridge in the country. The enclosed hammer keeps the profile completely snag free, so it draws clean from a pocket or an IWB holster, and the DAO trigger means operation stays dead simple under stress. No internal lock on this one either, which revolver folks will appreciate.
Why the 940-3 Runs on Moon Clips
Since 9mm is a rimless cartridge, the fluted stainless cylinder is cut for full moon clips, and Smith & Wesson includes three of them. Load a clip ahead of time and you've got a reload that's faster than a speed strip and drops all five empties in one motion. It also means you can feed this little gun the same ammo as your semi-auto, which keeps things cheap and simple at the range. Out of the 2.17 inch barrel with its 1:10 twist, 9mm delivers respectable defensive performance without the snappy recoil and muzzle blast of a lightweight .357.
Sights and Grip Built for Real Carry
Up front you get an XS tritium night sight with a larger dot that's quick to pick up in daylight and glows when the light goes away, paired with a dovetailed U-notch rear. That's a serious upgrade over the old gutter sights snub guns used to wear. The Hogue OverMolded Bantam rubber grip fills the hand with finger grooves and soaks up recoil while staying compact enough to hide.
Everyday Numbers on the S&W 940-3
At 23 ounces with a 6.63 inch overall length and 1.31 inch width, it carries like a J-Frame should: forgotten until you need it. The satin stainless finish shrugs off sweat and holster wear, and it's all backed by Smith & Wesson's lifetime service policy. For anyone who trusts a wheelgun but wants 9mm convenience, this one checks every box.
Key Specifications
- Manufacturer: Smith & Wesson
- Model: 940-3 Carry
- MPN: 14295
- UPC: 022188901337
- Caliber: 9mm Luger
- Action: Double Action Only
- Capacity: 5 Rounds
- Frame Size: Small (J-Frame)
- Barrel Length: 2.17"
- Twist Rate: 1:10 RH
- Frame / Barrel Material: Stainless Steel
- Finish: Satin Stainless
- Sights: XS Tritium Front Night Sight, Dovetailed U-Notch Rear
- Grip: Hogue OverMolded Bantam Rubber
- Overall Length: 6.63"
- Weight: 23 oz
What’s Included
- Smith & Wesson Model 940-3 revolver
- Three full moon clips
- Owner's manual
Frequently Asked Questions
Do I have to use moon clips with the S&W 940-3?
For practical use, yes. Since 9mm is a rimless case, the moon clips give the extractor star something to push against for positive ejection. Rounds will generally headspace and fire without a clip, but you'd have to pick the empties out one at a time, so plan on running the three included clips and picking up spares.
Does the 940-3 have an internal lock?
No, this model ships without the internal lock, which is a big selling point for a lot of revolver buyers. The frame keeps the classic clean look without the keyhole above the cylinder release.
How does 9mm recoil feel in a J-Frame this size?
Pretty manageable. At 23 ounces of all-stainless construction, the 940-3 has more heft than the airweight snubs, and that weight plus the Hogue rubber grip takes the sting out of 9mm. Most people find it noticeably softer to shoot than a lightweight .38 +P or .357 snub.
Can you cock the hammer on the Model 940-3 for single-action shots?
No, this is a double-action-only design with a fully enclosed hammer, so there's nothing to thumb back. The upside is a completely snag-free draw from a pocket or holster, and the trigger pull stays consistent for every shot.







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