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Glock 31 Review: Specification, Performance, and Price

Glock 31 Specs Glock 31 Specs Glock 31 Specs

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The Glock 31 is a semi-automatic, recoil-operated, striker-fired pistol chambered in the .357 SIG caliber. The Glock 31 specs highlight a full-sized design, featuring a 4.49-inch barrel and a robust frame that holds a standard 15-round magazine. The Glock 31 performance is distinguished by its high-velocity rounds, providing excellent stopping power and accuracy, making it suitable for law enforcement and personal defense.

The Glock 31, often referred to as the 357 Glock, upholds Glock's reputation for durability with its high-strength polymer frame and corrosion-resistant finish, ensuring longevity even under demanding conditions. The price of the Glock 31 typically ranges from $500 to $650. With its combination of advanced specifications, reliable performance, and reasonable price, the Glock 31 for sale presents a compelling option for those in need of a powerful and dependable handgun.

Main Specs of Glock 31
Glock 31 Specs Glock 31 Spec Value
Caliber.357 SIG
Magazine Capacity15 rounds
Weight (Unloaded)26.12 oz / 740 g
Overall Length7.32 in / 186 mm
Barrel Length4.49 in / 114 mm
Trigger Pull~5.5 lbs / ~2.5 kg
Safety FeaturesTrigger safety, Firing pin safety, Drop safety
Sight SystemFixed sights
Frame MaterialPolymer
Slide MaterialSteel
FinishnDLC finish
RecoilModerate to high
Grip TextureRough texture for improved grip
Accessory RailYes
Field Stripping EaseUser-friendly
Recoil Spring SystemDual recoil spring assembly
Price$500 - $650
WarrantyLimited 1 Year
GenerationGen 4 / Gen 5
Firing ModeSemi-automatic
Trigger SystemSafe Action
Holster CompatibilityCompatible with various holsters
Muzzle Velocity~1350 fps
Effective Range50 m / 55 yd
ReliabilityHighly reliable
Ambient Temperature Operation-40°C to +200°C
Water ResistanceWater-resistant up to certain conditions
Dust ResistanceHigh dust resistance
Maintenance RequirementsRegular cleaning and maintenance required
CustomizabilityHighly customizable
Slide ActionSmooth slide action


What are the Key Specs of Glock 31 Guns?


The Glock 31 is a full-sized type of Glock designed for law enforcement and personal defense. The Glock 31 stands out for its robust construction and high-velocity performance. The Glock 31 has a barrel length of 4.49 inches and an overall length of 7.32 inches, with a height of 5.43 inches. The Glock 31 is chambered in .357 SIG, providing superior stopping power and accuracy at extended ranges. The magazine capacity is 15 rounds, offering substantial firepower for high-stress situations.

The Glock 31 features a durable finish on the slide, ensuring resistance to corrosion and wear. The Glock 31 incorporates the Glock Safe Action System, which includes three independent safeties: trigger, firing pin, and drop safeties, enhancing the pistol's reliability and safety. The standard sights are fixed, facilitating quick target acquisition and precision.


How does Glock 31 differ from Glock 43 Pistols?


The Glock 31 differs from Glock 43 pistols in size, caliber, and intended use. The Glock 31 is a full-sized pistol chambered in .357 SIG, designed for high-velocity performance and law enforcement applications. The Glock 43 is a subcompact pistol chambered in 9mm Luger, intended for concealed carry. The Glock 31 features a 4.49-inch barrel and an overall length of 7.32 inches, making it larger and more suited for duty use. The Glock 43, with a 3.41-inch barrel and overall length of 6.26 inches, enhances portability and concealability. The Glock 31 holds 15 rounds, while the Glock 43 holds 6 rounds. The Glock 31's larger size and higher capacity make it more suitable for scenarios requiring extended firepower, whereas the Glock 43's compact design is ideal for everyday personal defense.


How does the Glock 31 Gun Perform?


The Glock 31 performs impressively in terms of power and accuracy, primarily due to its .357 SIG chambering. This high-velocity round delivers excellent stopping power and penetration, making the Glock 31 highly effective for law enforcement and personal defense.

While the Glock 31 can be used for competition shooting, its design and caliber are more tailored for tactical and defensive scenarios rather than competitive sports. The higher recoil and larger size compared to typical competition pistols may pose challenges for some competitors.

The Glock 31 is highly durable, featuring Glock's renowned polymer frame and a tough, nitride finish on the slide. These materials ensure resilience against wear and tear, corrosion, and harsh environmental conditions, making the Glock 31 a reliable and long-lasting firearm.


What are the Recommended Uses for Glock 31 ?


The Glock 31 is primarily recommended for law enforcement, personal defense, and tactical applications due to its powerful .357 SIG caliber and high magazine capacity. Its high-velocity .357 SIG round and 15-round capacity make it well-suited for police and security personnel who need reliable stopping power and accuracy. For personal defense, the Glock 31's robust performance and reliable operation offer confidence and security in high-threat situations. Its durability and power make it ideal for tactical scenarios, where dependable performance and the ability to handle harsh conditions are crucial. While not specifically designed for competition, the Glock 31 can be used for recreational shooting, providing enthusiasts with a powerful and accurate handgun experience.


Can a GLOCK 31 shoot 357 Magnum?


No, a Glock 31 cannot shoot .357 Magnum. The Glock 31 is specifically chambered for .357 SIG, a different cartridge designed to provide high velocity and reliable feeding in semi-automatic pistols. The .357 Magnum is a longer, rimmed cartridge intended for revolvers and is not compatible with the Glock 31's design or chamber dimensions. Using .357 Magnum ammunition in a Glock 31 would be unsafe and could cause damage to the firearm.


Is the GLOCK 31 accurate?


Yes, the Glock 31 is accurate. The Glock 31 is designed to deliver high-velocity .357 SIG rounds with precision, providing excellent accuracy at various ranges. The combination of its barrel length and the high ballistic performance of the .357 SIG cartridge contributes to consistent shot placement. The fixed sights and Glock's trigger system further enhance its accuracy.


What Gen is a Glock 31?


The Glock 31 is available in multiple generations, with the most recent being the Gen 4 and Gen 5 models. Each generation includes design improvements and features that enhance performance and usability. The Gen 4 model introduced a modular backstrap system for better grip customization, a dual recoil spring assembly to reduce felt recoil, and a larger magazine release. The Gen 5 model further improved with a flared mag-well for faster reloading, the removal of finger grooves for a more versatile grip, and the Glock Marksman Barrel for enhanced accuracy. These advancements make the Glock 31 suitable for both professional and personal defense applications.


What are the Advantages of Glock 31?


The main advantage of the Glock 31 is its powerful performance and high magazine capacity, making it ideal for law enforcement and self-defense. Further advantages of the Glock 31 are listed below.

  • High-Velocity Caliber: Chambered in .357 SIG, the Glock 31 delivers high-velocity rounds with excellent stopping power and penetration, which is crucial in defensive scenarios.
  • High Magazine Capacity: The standard magazine holds 15 rounds, providing substantial firepower in high-stress situations, reducing the need for frequent reloads.
  • Accuracy: The Glock 31 is known for its precision, aided by its 4.49-inch barrel and Glock's Marksman Barrel (in Gen 5 models), which enhances shot consistency and accuracy at various ranges.
  • Reliability: Glock's reputation for reliability holds true with the Glock 31, which performs consistently even under adverse conditions, ensuring it functions when needed most.
  • Durability: Built with Glock's high-strength polymer frame and a corrosion-resistant finish on the slide, the Glock 31 is designed to withstand rigorous use and harsh environments, ensuring a long service life.
  • Customizability: The Glock 31, particularly in Gen 4 and Gen 5 versions, offers features such as a modular backstrap system and a flared mag-well, allowing users to tailor the gun to their preferences for improved comfort and performance.


What are the Disadvantages of Glock 31?


The main disadvantage of the Glock 31 is its high recoil due to the .357 SIG caliber, which may affect shooting comfort and control. Further disadvantages of the Glock 31 are listed below.

  • High Recoil: The .357 SIG caliber generates significant recoil, which can be challenging for some shooters, especially during rapid-fire scenarios, potentially affecting accuracy and follow-up shots.
  • Cost of Ammunition: .357 SIG ammunition is typically more expensive and less readily available than more common calibers like 9mm, which can increase the cost of regular practice and training.
  • Size and Weight: As a full-sized pistol, the Glock 31 may be less suitable for concealed carry compared to more compact models. Its larger dimensions and weight can make it cumbersome for everyday carry for some users.
  • Magazine Capacity: While the 15-round capacity is an advantage in terms of firepower, it also results in a bulkier grip, which may not be comfortable for shooters with smaller hands.
  • Noise and Muzzle Blast: The high-velocity .357 SIG round produces more noise and muzzle blast compared to lower-velocity rounds, which can be distracting and require effective hearing protection during extended use.
  • Customization Limitations: While the Glock 31 does offer some customization options, it has fewer aftermarket accessories available compared to the more popular 9mm models, limiting personalization for some users.


How to Own a Glock 31 Gun?


To own a Glock 31, you must adhere to the legal requirements for purchasing a firearm in your area. Typically, you need to follow six important steps.

  • Background Check: You are required to pass a background check mandated by federal law, conducted through the National Instant Criminal Background Check System (NICS). This ensures you have no disqualifying criminal history or other factors preventing gun ownership.
  • Firearms License: Depending on your state, you may need to obtain a specific license or permit to purchase or carry a handgun. Some states have additional requirements for handgun purchases.
  • Age Requirement: You must be at least 21 years old to purchase a handgun from a federally licensed dealer in the United States. This age requirement is standard across all states for handguns.
  • Dealer Purchase: Visit a licensed firearms dealer to select and purchase the Glock 31. The dealer will handle the necessary paperwork and ensure compliance with all local, state, and federal laws.
  • Waiting Period: Some states require a mandatory waiting period between the purchase and the actual possession of the firearm. This period can vary, so check local regulations.
  • Safety Training: While not mandatory in all states, completing a firearm safety course is highly recommended and, in some jurisdictions, required before you can finalize the purchase. This training helps ensure responsible ownership and safe handling of the Glock 31


How much does a Glock 31 Cost?


The average cost of a Glock 31 typically ranges from $500 to $650. The price of a Glock 31 for sale can vary based on several factors, including the retailer, geographic location, and current market demand. When looking for a Glock 31 for sale, consider that prices may differ due to factors such as optional upgrades like night sights, custom finishes, and additional accessories, which can increase the overall cost. New versus used condition and availability can also impact the price.


How many rounds does a Glock 31 hold?


The Glock 31 holds 15 rounds as standard in its magazine. This high capacity is designed to provide substantial firepower for law enforcement and personal defense scenarios. The Glock 31 can also use extended magazines, which can increase its capacity up to 22 rounds. This option offers increased ammunition for situations requiring more sustained firepower without significantly altering the firearm's handling and balance.


What are the Factor Influencing the Price of Glock 31 Firearms?


Several factors influence the price of Glock 31 firearms, affecting how much you might pay at any given time. Below are the factors influencing the price of Glock 31 guns.

  • Model Features: The price of the Glock 31 can vary depending on specific features such as night sights, custom finishes, or upgraded triggers, which add value and functionality.
  • New vs. Used: Brand new Glock 31 pistols will generally be more expensive than used models. The condition, age, and history of a used firearm significantly affect its market price.
  • Geographic Location: Prices can differ based on regional factors such as local taxes, shipping costs, and the density of firearms dealers, which influences competition and pricing.
  • Market Conditions of G31: Broader economic factors, changes in gun ownership laws, and shifts in social attitudes towards firearms can influence the overall market environment and pricing.
  • Retailer Markup: Dealers set their prices based on various operational costs, competitive factors, and desired profit margins, which can vary significantly from one retailer to another.
  • Accessories Included: The inclusion of additional accessories like holsters, extra magazines, or custom grips can increase the overall cost of the firearm.


What are the Considerations when Purchasing a Glock 31 Handgun?


When purchasing a Glock 31 handgun, several important considerations should guide your decision.

  • Purpose: Determine the primary use of the handgun—whether for law enforcement, personal defense, or tactical applications.
  • Caliber: The Glock 31 is chambered in .357 SIG, known for its high velocity and stopping power.
  • Size and Ergonomics: Assess how the Glock 31 fits in your hand.
  • Magazine Capacity: The Glock 31 has a standard 15-round magazine capacity.
  • Safety Features: Familiarize yourself with the Glock 31's safety mechanisms, including the Glock Safe Action System.
  • Accessories and Customization: Explore available accessories and customization options to enhance the usability and effectiveness of the Glock 31.
  • Price and Budget: Ensure the purchase price of the Glock 31 fits within your budget.
  • Legal Requirements: Verify compliance with all local and state laws related to handgun ownership, including necessary permits, age restrictions, and background checks.


What are the Available Accessories for Glock 31 Gun?


The Glock 31 is compatible with a range of accessories that enhance its functionality, comfort, and performance. Some of the most popular accessories for the Glock 31 are outlined below.

  • Sight Upgrades: Owners can enhance the factory sights with options such as tritium night sights and fiber-optic sights, which improve visibility and accuracy, especially in low-light conditions.
  • Extended Magazines: While the standard magazine capacity is 15 rounds, extended magazines are available that increase capacity to 22 rounds, providing additional firepower for tactical situations.
  • Holsters: A variety of holsters are available for the Glock 31, including IWB (Inside-the-Waistband), OWB (Outside-the-Waistband), and duty holsters, catering to different carrying preferences and professional needs.
  • Grip Enhancements: Options like grip sleeves or talon grips can be added to improve the ergonomic feel of the Glock 31, providing better control and comfort during use.
  • Trigger Upgrades: Aftermarket triggers that refine the feel and response of the trigger pull are available, which can aid in improving accuracy and shooting comfort.
  • Custom Slides and Barrels: For those looking to further personalize their Glock 31, custom slides and barrels are available, offering improved aesthetics and potentially enhanced shooting characteristics.
  • Tactical Lights and Lasers: Adding tactical lights and laser sights can improve target acquisition and visibility in low-light conditions, making the Glock 31 more versatile in various scenarios.
  • Magwells: Installing a flared magwell can facilitate faster and more efficient magazine changes, which is beneficial in high-stress situations.


How big is a Glock 31?


The Glock 31 is a full-sized pistol with an overall length of 7.32 inches, a height of 5.43 inches, and a width of 1.18 inches. The barrel length is 4.49 inches. In terms of size, the Glock 31 is comparable to other full-sized duty pistols like the Glock 17 and the SIG Sauer P226. The Glock 31's dimensions make it slightly larger than compact models like the Glock 19 but similar to other full-sized firearms in its category, offering a balance of control and capacity suitable for law enforcement and personal defense.


What Modifications can you do to a Glock 31 ?


Various modifications can enhance the functionality, performance, and aesthetics of a Glock 31. Installing aftermarket triggers can improve pull and reset characteristics, providing smoother action and potentially increased accuracy. Upgrading to fiber optic or tritium night sights improves target acquisition and accuracy, especially in low-light conditions. Adding stippling, grip tape, or custom grip panels enhances control and comfort for better handling. Magazine extensions increase capacity from 15 to 22 rounds, providing extra firepower. Modifying the slide with cuts reduces weight, and applying coatings increases durability and corrosion resistance. Replacing the factory barrel with a precision barrel improves accuracy. Upgrading the recoil spring assembly better manages recoil for a smoother shooting experience. Adjusting the frame or accessories ensures compatibility with a wider range of holsters, optimizing comfort and accessibility. Personalizing the firearm with custom colors, engravings, or unique slide plates makes your Glock 31 distinct and tailored to your style.


How reliable are Glock 31 Guns in Various Conditions?


The Glock 31 is highly reliable in various conditions, maintaining consistent performance across a range of environmental challenges. The performance of the Glock 31 in adverse conditions is described below.

  • Moisture and Dust: The Glock 31 functions effectively in moist and dusty environments. Its polymer frame and durable finish on the slide offer inherent resistance to moisture and debris, ensuring the gun operates smoothly without malfunctions or significant wear even in harsh conditions.
  • Temperature Extremes: The Glock 31 operates reliably in both extreme cold and hot temperatures. It maintains functionality without any special modifications, making it suitable for a wide variety of geographic locations and climates.
  • Rust Prevention: The finish on the Glock 31 slide provides excellent resistance to corrosion and rust. This treatment protects the firearm from harsh elements, including saline and humid environments, preserving both its function and appearance over time.
  • Overall Reliability: The Glock 31’s design includes features like the Safe Action System, which incorporates multiple safety mechanisms and a consistent trigger pull, further enhancing its reliability. These features ensure that the Glock 31 performs reliably under diverse conditions, making it a trusted choice for law enforcement, personal defense, and tactical applications.


What are the Ergonomic Considerations when handling Glock 31 Pistol?


Ergonomic considerations for handling the Glock 31 prioritize comfort, ease of use, and effective control during operation. The main ergonomic aspects of the Glock 31 are outlined below.

  • Grip Design: The Glock 31 features a full-sized frame that provides a comfortable and secure grip for a wide range of hand sizes. The textured grip surface enhances control and prevents slippage, contributing to better accuracy and handling, especially in adverse conditions.
  • Handling and Recoil: The substantial size and balanced weight distribution of the Glock 31 help in managing the recoil of the .357 SIG caliber effectively. This ergonomic design provides a comfortable shooting experience and allows for quicker recovery between shots, which is essential for both defensive scenarios and tactical applications.
  • Grip Customization: The grips on the Glock 31 are replaceable, allowing for customization to suit individual preferences. Users can install aftermarket grip panels or sleeves to enhance comfort and control. This flexibility is beneficial for shooters with specific ergonomic needs or those who use the pistol in various environmental conditions.
  • Control Accessibility: The controls on the Glock 31, including the magazine release and slide stop, are ergonomically placed for easy operation without the need to adjust your grip. This thoughtful placement ensures efficient manipulation of the pistol, enhancing safety and speed during use.


How long is a GLOCK 31 barrel?


The barrel of a Glock 31 is 4.49 inches long. This length contributes to the firearm's accuracy and ballistic performance, particularly when utilizing the high-velocity .357 SIG caliber. The 4.49-inch barrel length is standard for full-sized Glock pistols, comparable to models such as the Glock 17 and Glock 22, which also feature 4.49-inch barrels. This consistency in barrel length across these models ensures similar handling characteristics and performance.


What are the Common Characteristics of Glock 31  Pistols?


Glock 31 pistols are known for their powerful performance and robust design, incorporating several key characteristics that make them suitable for law enforcement, personal defense, and tactical applications. The common characteristics of the Glock 31 are discussed below.

  • Safe Action Trigger System: This system integrates three automatic safety features to prevent accidental discharge, ensuring the pistol only fires when the trigger is deliberately pulled. This enhances safety during handling and operation.
  • Full-Sized Polymer Frame: The Glock 31 features a durable polymer frame that is lightweight yet strong, providing resistance to wear and environmental impacts. The full-sized design offers a comfortable grip and better control, especially for users with larger hands.
  • Durable Slide Finish: The slide of the Glock 31 has a corrosion-resistant finish, which protects the pistol from the elements and ensures longevity. This durable finish helps maintain the firearm’s functionality and appearance over time.
  • Striker-Fired Mechanism: The striker-fired design of the Glock 31 simplifies the firing mechanism, enhancing reliability by eliminating the need for a hammer and enabling a consistent and clean trigger pull.
  • Fifteen-Round Magazine Capacity: The standard magazine holds 15 rounds, offering substantial firepower while maintaining a manageable size for handling and control. This high capacity is beneficial in high-stress or tactical scenarios.
  • Accessory Rail: The Glock 31 includes an integrated accessory rail, allowing the attachment of lights, lasers, and other tactical accessories to enhance its functionality and versatility in various situations.
  • Fixed Sights: It comes equipped with basic fixed sights that are adequate for typical defensive and tactical ranges. There are also options available to upgrade to more advanced sighting systems for improved target acquisition.


What is the Suggested Training for handling Glock 31  Pistols?


For effective handling of Glock 31 pistols, comprehensive training that emphasizes safety, functionality, and practical use is crucial. Suggested training for the Glock 31 is described in the following steps.

  • Basic Firearm Safety: Essential safety training should cover all fundamental rules, such as treating every firearm as if it is loaded, keeping your finger off the trigger until ready to shoot, and always pointing the firearm in a safe direction.
  • Handling and Operation: Learn the specific features of the Glock 31, including its Safe Action System, and become proficient in tasks such as loading, unloading, cleaning, and safely storing the firearm.
  • Practice Drawing and Holstering: Since the Glock 31 is often used for law enforcement and personal defense, training should include proper techniques for drawing and holstering the pistol, ensuring quick and safe access when needed.
  • Live Fire Drills: Participate in live fire exercises to develop and refine shooting skills. Drills should focus on improving accuracy, response time, and handling under stress to simulate real-life scenarios.
  • Malfunction Management: Understand and practice how to identify and clear common firearm malfunctions to ensure reliability and safety during use.
  • Advanced Defensive Training: For those intending to use the Glock 31 for personal defense or tactical applications, advanced courses should include situational awareness, legal aspects of using a firearm for self-defense, and decision-making under stress.

These training steps ensure that users are well-prepared to handle the Glock 31 effectively and safely in various situations.


Is a Glock 31  better than a .40 S&W?


No, the Glock 31 is not necessarily "better" than a .40 S&W; it depends on user preferences and intended use. The Glock 31, chambered in .357 SIG, and the Glock 22, chambered in .40 S&W, each have distinct characteristics. Both are full-sized pistols with a 7.32-inch slide length and 15-round capacity, but the Glock 31 is slightly heavier at 26.12 ounces compared to the Glock 22's 25.59 ounces. The Glock 31 offers high-velocity performance and excellent penetration, ideal for law enforcement and personal defense. The Glock 22, widely used by law enforcement, balances power and recoil with its .40 S&W caliber. Each model is suited to specific tasks, making neither definitively better overall.


Is the Glock 31  a Good Gun to Carry?


Yes, the Glock 31 is a good gun to carry, particularly for those needing a powerful and reliable firearm. The Glock 31, chambered in .357 SIG, offers high-velocity performance and substantial stopping power, making it suitable for personal defense and law enforcement. Its 15-round magazine capacity provides ample firepower, and the Safe Action Trigger System ensures safety during carry. While its full-sized frame may be less ideal for concealed carry compared to more compact models, it offers excellent control and accuracy. Its durable construction and reliability in various conditions further support its suitability as a carry weapon.


What are the Best Glock 31 Holsters?


The best Glock 31 holsters provide safety, comfort, quick accessibility, effective concealment and are always custom molded. The best Glock 31 holster equipped with a red dot sight is the Glock 31 Comfortable Belt Holster (Red Dot). It is a custom leather red dot holster, offering excellent carry comfort, superior retention, and security. This OWB holster features an open-muzzle design and steel-reinforced thumb break for enhanced stability and quick draw.


Are there Shoulder Holsters for Glock 31?


Yes, there are shoulder holsters for the Glock 31. Shoulder holsters represent one of the most convenient ways to carry Glock 31, distributing the weight across the shoulders and providing easy access. The best choice for Glock 31 shoulder carry is the Shoulder Holster Rig - Eagle, known for its comfort, adjustable fit, and balanced weight distribution, making it suitable for extended wear and effective concealment.