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The Smith & Wesson M&P 340 is the evolution of the legendary J-Frame revolver platform—reimagined with modern materials and features while preserving its reputation for reliability and concealability.
Engineered from a Scandium alloy frame with a stainless steel barrel and cylinder, this revolver delivers impressive strength at an incredibly light 13.8 ounces. Designed for concealed carry, the internal hammer, snag-free design, and Double Action Only (DAO) trigger make it ideal for pocket or holster use without snagging on draw.
The M&P 340 is chambered in .357 Magnum and rated for continuous +P ammunition, offering powerful performance in a compact size. Featuring a XS Sights® Tritium front sight and an integral U-notch rear sight, target acquisition is fast and intuitive in both day and night conditions.
This version omits the internal lock, staying true to a simpler, more direct defensive tool—trusted by law enforcement professionals and concealed carriers alike.
| Manufacturer | Smith & Wesson |
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| Model | M&P 340 (No Internal Lock) |
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| Caliber | .357 Magnum |
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| Action | Double Action Only |
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| Capacity | 5 Rounds |
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| Barrel Length | 1.88" |
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| Overall Length | 6.31" |
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| Height | 4.3" |
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| Width | 1.3" |
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| Weight | 13.8 oz |
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| Frame Material | Scandium Alloy |
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| Barrel Material | Stainless Steel |
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| Grip | Synthetic |
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| Sights | XS Sights® Tritium Front, Integral Rear |
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| Finish | Black |
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| Hammer | Enclosed / Internal |
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| Safety | None |
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| Optic Ready | No |
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| Threaded Barrel | No |
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| Trigger Pull | 10 lb (DAO) |
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| State Compliance | CA, CO, CT, DE, HI, IL, MD, NJ, NY, RI, VT, WA |
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Availability
of this item is subject to applicable federal, state, and local laws
and regulations. Always have full knowledge of your state and local gun
laws before attempting to order or purchase a gun. If you have any
questions we are happy to assist you. Any orders returned due to legal
restrictions or failed background checks are subject to a 15% restocking
fee and shipping charges.
This handgun is not available in CA, MA due to local state guns laws.
FFL Terms and Conditions
Any
items placed on the same order, as a controlled item will also be
shipped to the FFL. If you would like additional items shipped to you
directly, please place them on a separate order.
To expedite
your order, please have your dealer email their FFL to us. If the dealer
you are using to transfer a firearm has not sent us a currently updated
FFL to put on file, there will be an extended period of time needed to
process your order.
ITAR
International Traffic in Arms Regulations Controlled Product
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Features
- Chambered in .357 Magnum and rated for continuous +P use
- Scandium alloy frame for lightweight yet durable construction
- Double Action Only operation with enclosed, snag-free hammer
- Stainless steel barrel and cylinder for corrosion resistance
- No internal lock – simplified and more robust design
- XS Sights® Tritium front night sight for 24/7 visibility
- Integral U-notch rear sight
- 5-round capacity in a compact frame
- Ideal for concealed carry and backup use
- Approved for sale in CA, CO, CT, DE, HI, IL, MD, NJ, NY, RI, VT, WA
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