Smith & Wesson Model 640: The Ultimate Compact Revolver for Personal Protection

Are you searching for a reliable, easy-to-conceal firearm that offers robust stopping power without unnecessary complexity? Do you need a self-defense tool that's built to last and performs flawlessly when it matters most? For individuals prioritizing discreet carry, unwavering dependability, and potent defensive capabilities in a compact package, the Smith & Wesson Model 640 is an exceptional choice. This revered J-Frame revolver, available at DEGuns, embodies decades of Smith & Wesson's legendary craftsmanship, designed to be the ultimate companion for personal security.

Whether you're a seasoned firearm enthusiast seeking a dependable backup weapon, a new gun owner looking for an intuitive self-defense solution, or someone needing a discreet concealed carry option for everyday peace of mind, the Model 640 answers a critical need. Its robust construction and user-friendly design make it a standout for anyone asking: "What is the best compact revolver for concealed carry?" or "Which .357 Magnum offers superior reliability in a small frame?"

Why Choose the Smith & Wesson Model 640?

The Smith & Wesson 163690, commonly known as the Model 640 Centennial, stands as a testament to practical engineering. It’s engineered for those critical moments when your safety, or the safety of your loved ones, depends on absolute performance. Here’s what sets this compact powerhouse apart:

• Unrivaled Reliability: Revolvers are renowned for their mechanical simplicity and their ability to cycle under conditions that might cause semi-automatic pistols to falter. The Model 640 embodies this reliability, firing consistently even after prolonged storage or in adverse conditions.
• Optimal Concealment: With its 2.13-inch barrel and snag-free, hammerless design, the Model 640 is incredibly easy to carry discreetly. Its compact J-Frame size ensures it disappears under clothing, making it an ideal choice for everyday concealed carry (CCW).
• Potent Defensive Power: Chambered in .357 Magnum, this revolver delivers formidable stopping power. It also comfortably handles .38 Special and .38 Special +P ammunition, offering versatility for training and recoil management.
• Durable Construction: Crafted from robust stainless steel, the Model 640 is highly resistant to corrosion and wear, ensuring a lifetime of dependable service. Its rugged build means it can withstand the rigors of daily carry and use.
• Simple Operation: The double-action-only (DAO) trigger mechanism, combined with its hammerless profile, provides a consistent pull and eliminates the possibility of snagging on clothing, making for a smooth draw in high-stress situations.

Exploring the Design and Engineering of the Model 640

The enduring popularity of the Smith & Wesson J-Frame series, of which the Model 640 is a prime example, stems from its intelligent blend of compact dimensions and reliable functionality. This is not just a small gun; it's a meticulously engineered tool for personal defense.

The Iconic J-Frame Heritage

The J-Frame revolver has been a staple in concealed carry for decades, trusted by law enforcement as a backup gun and cherished by civilians for personal protection. The Model 640 upholds this legacy, offering the proven ergonomics and balance that make J-Frames so comfortable to carry and surprisingly shootable for their size. Its design represents a lineage of revolvers built for practical, real-world self-defense scenarios.

Hammerless Design: The Centennial Advantage

One of the defining features of the Model 640, part of Smith & Wesson's "Centennial" series, is its enclosed hammer. This "hammerless" configuration is a deliberate design choice that offers significant advantages for concealed carry:

• Snag-Free Draw: Without an external hammer spur, there’s nothing to catch on clothing, holsters, or other objects during a critical draw. This ensures a smooth, unimpeded presentation of the firearm, which can be life-saving in a defensive encounter.
• Enhanced Safety: The lack of an external hammer means there's no way to cock the gun for single-action fire. It operates purely in double-action-only (DAO) mode, providing a consistent trigger pull every time and reducing the chance of an accidental discharge due to an exposed, cocked hammer.
• Reduced Lint and Debris Accumulation: The enclosed design helps prevent lint, dust, and other debris from entering the action, contributing to its already legendary reliability, particularly for a firearm carried close to the body.

Stainless Steel Construction: Built to Endure

The Smith & Wesson Model 640 is crafted entirely from stainless steel. This material choice is not merely aesthetic; it's fundamental to the revolver's durability and longevity. Stainless steel offers:

• Superior Corrosion Resistance: Essential for a firearm that will be carried close to the body, where perspiration and humidity can accelerate rust. The stainless finish ensures the gun remains in pristine condition, even with consistent exposure to the elements.
• Exceptional Strength: The robust nature of stainless steel allows the Model 640 to safely chamber powerful .357 Magnum rounds, providing the structural integrity needed for high-pressure cartridges.
• Easy Maintenance: The smooth, resilient surface of stainless steel makes cleaning and maintenance straightforward, helping to preserve the firearm's performance over its lifespan.

The Black Polymer Grip: Control and Comfort

While the frame is stainless steel, the Smith & Wesson 163690 comes equipped with a black polymer grip. These grips are designed for optimal ergonomics and recoil absorption:

• Secure Hold: The polymer material and often textured surface provide a firm, non-slip grip, crucial for maintaining control during rapid firing, especially with the potent .357 Magnum cartridge.
• Recoil Mitigation: While a compact revolver will always have some felt recoil, the design and material of the polymer grip help to absorb and disperse some of the energy, making the shooting experience more manageable than it might be with traditional hard grips.
• Comfort for Carry: The polymer grip is generally lighter than wood or rubber alternatives, contributing to the overall lightweight and comfortable nature of the Model 640 for all-day carry.

The 2.13-inch Barrel: Balancing Power and Portability

The compact 2.13-inch (or often rounded to 2.125-inch) barrel is a deliberate design choice for this defensive revolver. It strikes a critical balance:

• Maximum Concealment: A shorter barrel contributes significantly to the Model 640's overall compact profile, making it easier to conceal in various carry positions and with different types of clothing.
• Sufficient Ballistics: While a longer barrel would yield higher velocities, the 2.13-inch length is still effective for delivering defensive ammunition within typical self-defense distances. It ensures that the .357 Magnum or .38 Special +P rounds achieve sufficient energy and expansion for their intended purpose.
• Maneuverability: In close-quarters defensive scenarios, a shorter barrel allows for greater maneuverability and faster target acquisition.

Caliber Versatility: .357 Magnum and .38 Special Compatibility

The Smith & Wesson Model 640's ability to fire both .357 Magnum and .38 Special ammunition is a significant advantage, offering flexibility for various training and defensive needs.

The Power of .357 Magnum

For those seeking maximum stopping power, the .357 Magnum is a legendary cartridge. It delivers impressive energy transfer and penetration, making it an incredibly effective round for self-defense. While powerful, shooting .357 Magnum in a compact J-frame like the Model 640 can be challenging due to recoil and muzzle flash. However, for those who train with it, it offers an undeniable psychological and practical advantage.

The Versatility of .38 Special (+P)

The ability to fire .38 Special ammunition is where the Model 640 truly shines for most users. Standard .38 Special rounds offer significantly reduced recoil and muzzle blast compared to .357 Magnum, making them ideal for:

• Training and Practice: More comfortable to shoot for extended periods, allowing users to build proficiency without fatigue or discomfort.
• Recoil-Sensitive Shooters: Provides a more manageable option for those who find the .357 Magnum too harsh.
• Enhanced Defensive Rounds (.38 Special +P): Many modern defensive .38 Special +P (plus P) loads offer excellent ballistic performance with manageable recoil. These rounds are often optimized for short-barreled revolvers, providing a potent and controllable option for everyday carry.

This versatility means you can train affordably and comfortably with .38 Special, then load up with powerful .357 Magnum or .38 Special +P for carry, ensuring you're always prepared.

Ideal Users and Use Cases for the Model 640

Who is the Smith & Wesson Model 640 best suited for? Its unique combination of features makes it an excellent choice for several specific user profiles and defensive scenarios:

• Everyday Concealed Carry (EDC): This is arguably the Model 640's primary role. Its compact size, hammerless design, and reliable performance make it a superb choice for discreet, all-day carry. If you frequently ask, "What is the best small revolver for concealed carry?" the Model 640 should be at the top of your list.
• Backup Weapon (BUG): For law enforcement officers or armed professionals, the Model 640 serves as an incredibly reliable and easily concealable backup firearm, ensuring continued defensive capability even if a primary weapon malfunctions or is lost.
• Home Defense: While larger firearms might be preferred for dedicated home defense, the Model 640's simplicity, point-and-shoot operation, and five-shot capacity make it a viable option for those who prefer a revolver for home protection. Its lack of external safeties (other than the double-action trigger pull) ensures quick deployment in an emergency.
• Revolver Enthusiasts: Collectors and those who appreciate the enduring design and mechanical simplicity of revolvers will find the Model 640 a valuable addition, representing a classic form factor updated with modern materials.
• New Firearm Owners (with proper training): While the double-action-only trigger requires practice, the simplicity of operation (no safeties to manipulate, no magazines to change) can appeal to new owners who prioritize ease of use and reliability. Proper training is crucial to master the trigger pull and recoil management.

Unwavering Reliability: The Hallmarks of a Smith & Wesson Revolver

When it comes to personal defense, reliability is paramount. The Smith & Wesson Model 640 excels in this regard, building on decades of the brand's reputation for dependable revolvers.

• Mechanical Simplicity: Revolvers, by their nature, are mechanically simpler than semi-automatic pistols. Fewer moving parts mean fewer points of failure. This inherent simplicity contributes significantly to the Model 640's consistent performance.
• Tolerance for Ammunition: Unlike some semi-autos that can be particular about ammunition types or bullet profiles, revolvers are generally more forgiving, reliably feeding and firing a wider variety of ammunition, provided it fits the cylinder.
• Resistance to Malfunctions: Issues like "stovepipes" or "failure to feed" that can plague semi-automatics are virtually non-existent in revolvers. If a round fails to fire, a simple pull of the trigger cycles to the next round, offering an immediate follow-up shot. This makes them highly resistant to common stoppages under stress.
• Trusted Heritage: Smith & Wesson has been manufacturing firearms since 1852, with an undeniable track record of producing high-quality, reliable revolvers. The Model 640 is a direct beneficiary of this extensive experience and commitment to excellence.

Addressing Common Questions and Considerations

Potential users often have questions when considering a compact .357 Magnum revolver. Let's tackle some frequently asked inquiries about the Model 640.

Is the .357 Magnum Too Powerful for a Small Gun?

This is a common concern, and it's a valid one. While the .357 Magnum is indeed a potent cartridge, the Model 640 is built to safely handle it. The stainless steel construction ensures durability. However, the felt recoil can be substantial in such a lightweight, compact firearm. For many, especially in a defensive scenario, the loud report and significant kick can be disorienting. This is precisely why the Model 640's ability to chamber .38 Special and .38 Special +P is so valuable. For training, or even for everyday carry, many users opt for quality .38 Special +P defensive ammunition, which offers an excellent balance of power and manageable recoil. The key is to find the right balance for your comfort and proficiency.

Is a 5-Shot Capacity Enough for Self-Defense?

In the vast majority of civilian self-defense encounters, which are often close-range and brief, five rounds are typically sufficient. While semi-automatics often boast higher capacities, the reliability and simplicity of a revolver like the Model 640 can outweigh the numerical advantage for many users. The philosophy behind a revolver like this is to reliably stop a threat quickly, not to engage in prolonged firefights. For those who prioritize absolute reliability and concealability over maximum capacity, five well-aimed shots are often more than enough.

How Difficult is the Double-Action-Only (DAO) Trigger Pull?

The DAO trigger on the Model 640 requires a longer, heavier pull compared to a single-action or striker-fired trigger. This deliberate design choice enhances safety by making accidental discharges less likely. While it requires more finger strength and practice to master, a consistent DAO pull can be very effective. Regular dry-firing practice (with an unloaded firearm or snap caps) is highly recommended to build trigger control and minimize flinching. Many users find that with practice, they can achieve surprising accuracy with a DAO trigger.

What About Maintenance and Care for the Model 640?

Being made of stainless steel, the Model 640 is relatively low maintenance. Regular cleaning after shooting is recommended to remove powder residue and lead fouling from the barrel and cylinder. A light coat of gun oil on moving parts will ensure smooth operation. Given its resistance to corrosion, it's an excellent choice for carry in humid environments. Its robust construction means it will serve you faithfully for many years with minimal attention.

Revolver vs. Semi-Auto for Concealed Carry: Which is Better?

This is a perennial debate, and the "better" choice truly depends on individual needs and preferences.

• Revolvers (like the Model 640): Excel in reliability, mechanical simplicity, user-friendliness (no external safeties to manipulate under stress), and tolerance for varied ammunition. They are also less susceptible to "limp-wristing" malfunctions. They are often preferred for deep concealment and as backup guns.
• Semi-Automatics: Typically offer higher capacity, faster reloads, and often lighter trigger pulls. They can be flatter for carry.

For those who prioritize absolute mechanical reliability, simplicity under stress, and the peace of mind of a snag-free design, the Smith & Wesson Model 640 is an excellent and often superior choice for personal defense.

Training and Practice: The Foundation of Proficiency

Regardless of the firearm you choose, consistent training and practice are crucial for effective self-defense. For the Smith & Wesson Model 640, focusing on the following will enhance your proficiency:

• Trigger Control: Master the long, smooth double-action pull through dry-fire and live-fire practice. This is key to accuracy with the DAO system.
• Recoil Management: Especially if using .357 Magnum, practice grip, stance, and follow-through to manage recoil effectively and quickly get back on target for follow-up shots.
• Drawing from Concealment: Practice drawing the Model 640 from your chosen concealed carry position. The hammerless design will make this particularly smooth and snag-free.
• Reloads (Speed Strips/Moon Clips): While not as fast as semi-auto reloads, practice using speed strips or moon clips (if compatible with an aftermarket modification) to efficiently reload your revolver.

Why the Smith & Wesson Model 640 is a Top-Tier Choice

The Smith & Wesson Model 640 (UPC: 022188147285, S&W Product Code: 163690) is more than just a compact revolver; it's a meticulously engineered tool for personal protection. It offers an unmatched blend of:

• Legendary Durability: Built from stainless steel, it's designed to withstand harsh conditions and deliver a lifetime of service.
• Uncompromising Reliability: The mechanical simplicity and robust design ensure it fires when you need it most, without common semi-auto malfunctions.
• Superior Concealability: Its compact, hammerless J-Frame design makes it disappear under clothing, providing discreet carry without compromise.
• Potent Power Options: Capable of handling both .357 Magnum and .38 Special (+P), offering versatility for training and self-defense.
• Ease of Use: A simple, point-and-shoot operation with no external safeties to fumble with under stress.

For anyone seeking a trustworthy, effective, and easily concealable firearm for personal defense, the Smith & Wesson Model 640 stands as a premier option. It's a classic design, perfected for the modern demands of personal security, ready to provide peace of mind.

Availability

The Smith & Wesson 163690 Model 640 revolver, along with a wide range of accessories and ammunition, is available at DEGuns. We are committed to providing our customers with top-tier firearms for their personal protection needs.

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Smith & Wesson Model 640 Specifications

Feature	Detail
Model	640 Centennial
Manufacturer	Smith & Wesson
Product Code	163690
Caliber	.357 Magnum, .38 S&W Spl
Capacity	5 Rounds
Barrel Length	2.13 inches
Overall Length	6.6 inches
Weight (Empty)	Approx. 22.5 oz
Frame Size	J-Frame
Action	Double-Action Only (DAO)
Sights	Fixed
Grip	Black Polymer
Finish	Stainless Steel
Safety	Internal Hammer/DAO
UPC	022188147285