Smith & Wesson M637 Review

Explore the Smith & Wesson M637 Airweight a compact .38 Special with a 5-round capacity, ideal for concealed carry. Features an aluminum alloy frame, stainless steel barrel, and fixed sights for quick target acquisition. The Smith & Wesson Model 637 is a versatile and reliable revolver that has gained a reputation for its performance and durability in the field of personal defense and law enforcement. This model, part of Smith & Wesson’s Airweight series, combines the time-tested design of the classic S&W J-frame with modern materials and manufacturing techniques, resulting in a lightweight, yet sturdy firearm ideal for concealed carry or as a backup weapon.

Design and Specifications

The M637 features an aluminum alloy frame and a stainless steel cylinder, which contribute to its lightweight nature, weighing in at just under 15 ounces when unloaded. It is chambered in .38 Special, offering a balance between stopping power and recoil management. The revolver holds five rounds, which is standard for compact revolvers of its size. Its 1.875-inch barrel length is optimized for concealed carry, ensuring that it can be easily hidden away without sacrificing too much in terms of accuracy at close ranges.

One of the hallmark features of the M637 is its exposed hammer, which allows for single-action firing, giving shooters the option to manually cock the hammer for a lighter and more precise trigger pull. This feature adds versatility to the revolver, making it suitable for a variety of shooting scenarios, from self-defense to target shooting.

Caliber and Capacity

The M637 revolver is specifically designed to fire the .38 Special cartridge, striking an optimal balance between stopping power and recoil control, making it highly manageable for shooters. With a standard 5-round cylinder, it offers a practical compromise between compactness and sufficient firepower.

This configuration is typical for compact revolvers, ensuring that the M637 maintains a streamlined profile while still delivering reliable performance and adequate capacity for self-defense or law enforcement applications.

Airweight Frame

The M637 revolver stands out for its innovative Airweight frame, constructed from a high-strength aluminum alloy. This material choice significantly reduces the firearm’s overall weight, bringing it down to an impressively light approximately 15 ounces when unloaded.

Such a lightweight design ensures that the M637 can be carried comfortably for long durations, minimizing the strain and fatigue often associated with carrying heavier firearms. This feature is particularly appreciated by those in need of a reliable self-defense weapon that won’t become burdensome over time, making the M637 an ideal choice for personal defense, law enforcement backup, and everyday carry scenarios.

Stainless Steel Barrel and Cylinder

The M637 revolver ingeniously combines a lightweight frame with a robust stainless steel barrel and cylinder, achieving a perfect blend of portability and resilience. The choice of stainless steel for these critical components not only enhances the revolver’s overall durability but also significantly increases its resistance to rust and corrosion, ensuring the firearm maintains its integrity and reliability over time.

With a standard barrel length of 1.875 inches, the M637 maintains a compact and easily concealable profile, yet it does not compromise on performance, offering reasonable accuracy for close to medium-range encounters. This thoughtful design makes the M637 an excellent choice for those seeking a reliable, durable sidearm that excels in both everyday carry and defensive situations, where dependability and ease of use are paramount.

External Hammer

The M637 revolver is distinctively equipped with an external hammer, a feature that significantly enhances its versatility and user control. This design allows the firearm to be operated in both single-action (SA) and double-action (DA) modes. In SA mode, the shooter can manually cock the hammer, resulting in a lighter and more precise trigger pull, which is ideal for situations where accuracy is paramount.

Conversely, in DA mode, the revolver can be fired more rapidly without the need to cock the hammer manually, albeit with a heavier trigger pull. This dual-mode capability provides users with the flexibility to choose between a deliberate, precise shot or a quicker, reactive response. This functionality makes the M637 especially suited for a variety of scenarios, from personal defense to recreational shooting, offering tailored shooting experiences to both novice and experienced shooters alike.

Grip and Ergonomics

The M637 revolver is designed with a focus on grip and ergonomics to ensure a comfortable shooting experience for a wide range of users. It usually features a synthetic grip, carefully engineered to offer a secure and stable hold, significantly aiding in recoil absorption and enhancing overall control during firing.

This attention to ergonomics ensures that the revolver fits comfortably in the hand, making it accessible and manageable even for individuals with smaller hands. For shooters looking for a more tailored grip experience, the market offers a variety of aftermarket grips that can replace the standard one, allowing for customization to personal preference or specific hand sizes. The thoughtful design of the M637’s grip area underscores its user-friendly nature, prioritizing ease of use, comfort, and effective handling. This makes the M637 not just a tool for self-defense but also a firearm that shooters can use with confidence and comfort over extended periods, whether at the range or in the field.

Sights

The M637 revolver is typically outfitted with fixed sights, which include a straightforward front blade and a notch at the rear. Despite their simplicity, these sights are remarkably efficient for swiftly acquiring targets, particularly in high-pressure self-defense scenarios. Their design is intentionally uncomplicated, avoiding any unnecessary adjustments that might hinder immediate use.

This simplicity is further complemented by the sights’ rugged construction, ensuring they can withstand the rigors of daily carry without succumbing to damage or misalignment. The integration of these fixed sights into the M637’s design underscores a commitment to reliability and ease of use under stress, making it an ideal choice for individuals seeking a dependable firearm for protection. The combination of effectiveness, durability, and minimalistic design enhances the M637’s appeal as a trustworthy companion in critical moments.

Performance and Handling

The Smith & Wesson M637 is renowned for its reliability. It fires with consistent accuracy at close to medium distances, which is a critical factor for a personal defense weapon. The revolver’s double-action trigger pull is smooth, albeit heavy, which is a common characteristic of revolvers designed for safety and to prevent accidental discharge. The single-action option provides a lighter and crisper trigger pull, allowing for more accurate shots when the situation permits.

Handling the M637 is relatively comfortable, thanks to its ergonomic design and the rubber grips that come standard. These grips help absorb recoil, making the revolver more manageable despite its lightweight frame. However, like all lightweight revolvers chambered in .38 Special, the M637 can exhibit significant recoil, which may be challenging for shooters with less experience or smaller hands.

Pros and Cons

My Personal Maintenance Routine Smith & Wesson 637

• Regular Cleaning After each use, clean the barrel, cylinder, and action to remove powder residue and debris.
• Lubrication Apply a small amount of quality gun oil to moving parts to ensure smooth operation.
• Check for Wear Regularly inspect your firearm for signs of wear or damage, particularly on moving parts and contact points.
• Ammunition Inspection Before loading, inspect your ammunition for any defects or signs of damage to prevent misfires or malfunctions.
• Dry-Firing Caution If dry-firing for practice, consider using snap caps to prevent potential damage to the firing pin.
• Storage Store your firearm in a dry, secure location, ideally with a trigger lock or in a safe to prevent unauthorized access.
• Holster Inspection Regularly check your holster for wear or damage that could affect retention or concealability.
• Grip Check Ensure the grips are securely attached and inspect for any cracks or discomfort that could affect handling.
• Sight Alignment Periodically check the alignment of your sights to ensure accuracy.
• Professional Servicing Annually, or after a significant number of rounds fired, have your firearm inspected and serviced by a professional gunsmith to ensure it remains in optimal condition.

Safety Tips

• Always handle the firearm as if it is loaded, even if you believe it’s not. This precaution ensures you maintain a high level of safety awareness.
• Keep the gun pointed in a safe direction at all times, ensuring it cannot harm anyone or anything if accidentally discharged.
• Until you are ready to shoot, keep your finger off the trigger and outside the trigger guard. This prevents unintended discharges.
• Be aware not only of your target but also of what is beyond it. Bullets can penetrate targets and walls, causing unintended damage or injury.
• When not in use, store the firearm in a secure, locked location, inaccessible to unauthorized users, especially children. Use trigger locks or safes for added security.

Smith & Wesson 637: My Expert Ratings and Insights

Aspect	Review Summary	Score
Cleaning Frequency	Regular cleaning post-use ensures optimal performance and longevity. Adherence to this routine is strict.	9/10
Lubrication	Proper lubrication of moving parts to prevent wear and ensure smooth operation. Consistently applied.	9/10
Inspection	Detailed inspection for wear and tear or damage after each use, maintaining high safety standards.	8/10
Storage Conditions	Firearms are stored in a controlled environment to prevent rust and damage. Care is taken for ideal conditions.	8/10
Ammunition Check	Regular checking and rotation of ammunition to ensure reliability and prevent aging issues.	8/10
Parts Replacement	Timely replacement of worn-out parts to maintain functionality and safety. Proactive approach.	7/10
Professional Servicing	Annual check-up by a professional to ensure deep maintenance and functionality.	7/10
Accessory Care	Care and maintenance of accessories (holsters, sights) to ensure they remain functional and effective.	7/10
Training Regularity	Consistent training to maintain proficiency and identify potential issues with handling or operation.	8/10
Safety Gear Maintenance	Regular checking and maintenance of safety gear (gloves, glasses) to ensure they provide proper protection.	7/10

Conclusion

The Smith & Wesson Model 637 is an excellent choice for those in need of a reliable, lightweight revolver for personal defense. Its combination of portability, ease of use, and effective caliber makes it a popular choice among concealed carry permit holders and law enforcement officers. While its recoil may require some practice to master, its overall performance and versatility make it a valuable tool for self-defense. With its sturdy construction and ease of maintenance, the M637 is likely to remain a favored option for self-defense enthusiasts and professionals alike.

FAQs

1. What is the Smith & Wesson M637?
   The M637 is a lightweight, small-frame revolver chambered in .38 Special, known for its reliability and suitability for concealed carry.
2. What makes the M637 “Airweight”?
   Its designation as “Airweight” comes from the use of aluminum alloy in the frame, significantly reducing the revolver’s overall weight.
3. Can the M637 fire +P ammunition?
   Yes, the M637 is rated for use with .38 Special +P ammunition, offering more power for self-defense purposes.
4. What is the capacity of the M637?
   The revolver holds 5 rounds of .38 Special ammunition.
5. Does the M637 have a safety mechanism?
   While it lacks an external safety switch, it features internal safety mechanisms like the hammer block, ensuring it only fires when the trigger is intentionally pulled.
6. Is the M637 suitable for beginners?
   Yes, with its simple operation, manageable recoil with standard ammunition, and built-in safety features, it’s suitable for beginners with proper training.
7. What type of action does the M637 use?
   It operates with a double-action/single-action (DA/SA) mechanism, offering versatility in how it can be fired.
8. Can I customize the grips on my M637?
   Absolutely, the M637’s grips can be easily replaced with aftermarket options to fit different hand sizes or preferences for material and texture.
9. How should I maintain my M637?
   Regular cleaning, proper lubrication, and periodic checks for wear and tear are essential. It’s also advisable to have it inspected by a professional gunsmith annually or after extensive use.
10. Where is the M637 most effectively used?
    It’s best used for personal defense, concealed carry, and as a backup firearm due to its compact size, reliability, and ease of use.

We’re eager to hear from you! Share your personal experiences and insights about the Smith & Wesson 637 in the comments section below. Whether it’s about its performance, handling, or how it fits into your daily life, your feedback could greatly assist fellow enthusiasts and potential owners in making well-informed decisions. Join the conversation and let’s help each other out!