Glock 31

Glock 31 pistol in .357 SIG: specs, history, ammo and Colorado legal notes from the CO Boots gun library. Want hands-on time with a firearm like the Glock 31? Our certified instructors cover safe handling, operation and marksmanship in every firearms training class.

Library IDGT-1795
ManufacturerGlock.
TypePistol
Caliber.357 SIG
ActionSemi-automatic
Barrel Length4.49 inches (114 mm)
Country of OriginAustria
Year of Production1997
Production StatusDiscontinued
Typical UsersLaw enforcement, military
Rating4.5

Glock 31: Technical Specifications

The Glock 31 is a semi-automatic pistol designed for law enforcement and personal defense, chambered in .357 SIG caliber. It features a barrel length of 4.49 inches, which contributes to its accuracy and muzzle velocity. The overall weight of the Glock 31 is approximately 24.87 ounces (empty), making it relatively lightweight for its size.

Constructed primarily from high-strength polymer and steel, the Glock 31 exhibits excellent durability and corrosion resistance. Its capacity is 15 rounds in the standard magazine, with options for extended magazines.

Unique engineering aspects include Glock's Safe Action system, which incorporates three passive safety mechanisms: a trigger safety, a firing pin safety, and a drop safety. This design ensures safe operation while allowing for a consistent trigger pull. The Glock 31 also features adjustable rear sights and a Picatinny rail for accessories, enhancing its versatility for various applications.

Glock 31: Performance Characteristics

The Glock 31 is a semi-automatic pistol chambered in .357 SIG, known for its impressive performance characteristics.

Accuracy: The Glock 31 features a 4.49-inch barrel, allowing for precise shooting at ranges up to 50 yards. Its polygonal rifling enhances bullet stability, contributing to its accuracy.

Reliability: Renowned for its reliability, the Glock 31 functions effectively in various conditions, thanks to its simple design and high-quality materials. It is highly resistant to dirt and corrosion.

Handling: Weighing around 31.2 ounces loaded, the Glock 31 offers a balanced feel. Its ergonomic grip and low bore axis reduce muzzle rise, facilitating quicker follow-up shots.

Rate of Fire: The Glock 31 can achieve a semi-automatic rate of fire, allowing for rapid shots with manageable recoil, making it effective for defensive and competitive use.

Other metrics include a standard magazine capacity of 15 rounds, and it features Glock's Safe Action system, enhancing safety without compromising performance. Overall, the Glock 31 delivers a blend of accuracy, reliabi

Glock 31: Design Features

The Glock 31 is a semi-automatic pistol designed primarily for law enforcement and self-defense, chambered in .357 SIG. Its ergonomic features include a polymer frame that provides a lightweight and comfortable grip, accommodating various hand sizes. The textured grip surface enhances control, while the low bore axis contributes to reduced recoil and improved accuracy.

Safety mechanisms include the Safe Action system, which comprises three independent safeties: trigger safety, firing pin safety, and drop safety, ensuring the firearm won't discharge unintentionally.

Aesthetically, the Glock 31 maintains the classic, utilitarian design of Glock pistols, with a matte black finish that minimizes glare. Innovative features include an adjustable rear sight and compatibility with Glock's extensive accessory rail for tactical lights and lasers. Additionally, the double-stack magazine design allows for a higher ammunition capacity, catering to users seeking reliability and performance in a compact package.

Glock 31: Historical Context

The Glock 31, introduced in 1996, is a .357 SIG caliber pistol developed by Glock GmbH, expanding the company's line of polymer-framed, striker-fired handguns. Its design is based on the Glock 17 but features a modified barrel and recoil spring to accommodate the .357 SIG round, which is known for its high velocity and stopping power.

Key milestones include its adoption by various law enforcement agencies in the United States and abroad, reflecting a growing preference for the .357 SIG caliber due to its performance. The Glock 31 gained prominence in the late 1990s and early 2000s, being utilized in various law enforcement and military contexts.

The Glock 31's impact on firearm design includes the popularization of polymer frames, increased emphasis on high-capacity magazines, and advancements in striker-fired mechanisms, influencing many subsequent handgun designs. Its reliability and modularity have made it a favored choice among tactical units and civilian shooters alike.

Glock 31: User Experience

The Glock 31 is a .357 SIG pistol praised for its reliability and performance. Users frequently highlight its comfortable grip, which accommodates various hand sizes, contributing to control during shooting. The lightweight polymer frame enhances portability, making it easy to carry for extended periods.

In terms of ease of use, the Glock 31 features a straightforward design with intuitive controls, allowing both novice and experienced shooters to operate it effectively. The trigger pull is often noted as smooth, facilitating accurate shooting.

Durability is a strong point, as Glocks are known for their robust construction, capable of withstanding harsh conditions. Users report minimal wear over time, reinforcing its reputation for longevity.

Common complaints include the limited magazine capacity compared to other firearms in its class and some users finding the recoil more pronounced due to the .357 SIG caliber. Overall, feedback remains positive, with many praising its reliability and performance as a defensive or service weapon.

Glock 31: Ammunition Information

The Glock 31 is chambered for the .357 SIG cartridge, a high-velocity round designed for increased accuracy and stopping power. The .357 SIG is known for its flat trajectory, similar to that of a .357 Magnum but in a semi-automatic platform.

While primarily designed for .357 SIG, the Glock 31 can also accommodate .40 S&W ammunition when using a conversion barrel, making it versatile for users who want different caliber options. However, it is crucial to ensure that the barrel is designed for this purpose to avoid safety issues.

For optimal performance, it’s recommended to use premium brands such as Federal, Speer, or Hornady, which offer various loads including full metal jacket (FMJ) for practice and hollow point (HP) for self-defense. The use of +P ammunition can enhance performance, but users should consult the manufacturer’s guidelines to ensure safe operation. Additionally, always ensure compatibility with your specific Glock model for best results.

Glock 31: Usage Tips and Best Practices

The Glock 31, chambered in .357 SIG, is a reliable firearm known for its accuracy and power.

Cleaning and Maintenance:
1. Frequency: Clean after every range session or if exposed to dirt/moisture.
2. Disassembly: Follow the manual to safely disassemble the slide, barrel, and recoil spring.
3. Cleaning: Use a bore brush and cleaning rod to clean the barrel. Wipe down the slide and frame with a cloth and gun-specific cleaner.
4. Lubrication: Apply a light coat of lubricant on metal-to-metal contact points, particularly the slide rails and barrel locking lugs.
5. Inspection: Regularly inspect the recoil spring for wear and replace as necessary.

Shooting Tips:
1. Grip: Maintain a firm grip to manage recoil effectively.
2. Stance: Use a stable shooting stance, such as isosceles or Weaver.
3. Trigger Control: Focus on smooth trigger pull to enhance accuracy.

Common Mistakes:
1. Neglecting Maintenance: Regular cleaning prevents malfunctions.
2. Poor Grip: A loose grip can lead to reduced accuracy and control.
3. Ignoring Training: Regular practice is crucial for proficiency.

Legal Considerations in Colorado

The Glock 31 is a semi-automatic pistol chambered in .357 SIG, designed primarily for law enforcement and civilian use. Its legal status varies by jurisdiction. Federally, it is legal for civilian ownership, but state laws dictate specific restrictions.

In states like California and New York, the Glock 31 may be restricted or require compliance with stringent regulations, such as being on an approved roster. Conversely, states like Texas and Arizona have fewer restrictions on ownership.

Military use is generally limited to law enforcement and security personnel, with the model not commonly issued as a primary military sidearm.

Notable legal cases involving Glocks revolve around liability and self-defense claims, though specific cases concerning the Glock 31 are less documented. Overall, compliance with local laws is crucial for ownership and use. Always check state and local regulations for the most accurate and current legal guidelines.

Glock 31: Reviews and Ratings

User reviews for the Glock 31 generally highlight its reliability and performance as standout features. Many reviewers appreciate its robust design, stating that it functions flawlessly even under adverse conditions. Accuracy is another recurring theme; users often mention the Glock 31's consistent shot placement and ease of aiming, making it suitable for both self-defense and competitive shooting.

Customer service experiences vary, with some users reporting positive interactions while others express frustration with response times or service effectiveness. Overall satisfaction tends to be high, with many owners considering the Glock 31 a great investment due to its durability and versatility. However, a few users note the grip size as a potential drawback for smaller hands. Overall, the Glock 31 is well-regarded for its reliability, accuracy, and solid performance, though customer service experiences can be mixed.

Glock 31: Appearances in Media

The Glock 31, known for its .357 SIG caliber, has appeared in various movies, TV shows, and video games. Here’s a brief list:

Movies:
1. "Die Hard 4.0" (2007) - The Glock 31 is used by some of the characters in this action film featuring Bruce Willis.
2. "Law Abiding Citizen" (2009) - The character Clyde Shelton, played by Gerard Butler, uses a Glock 31 in the film.

TV Shows:
1. "CSI: Crime Scene Investigation" - The Glock 31 has been featured in various episodes as part of the weapons used by law enforcement characters.
2. "The Shield" - Several characters in this police drama have been seen using the Glock 31.

Video Games:
1. "Counter-Strike: Global Offensive" - The Glock 31 is represented in this popular first-person shooter as one of the sidearms available to players.
2. "Call of Duty: Modern Warfare" series - Variants of the Glock, including the Glock 31, have appeared in several titles within this franchise.

This list is not exhaustive, but it highlights some notable instances of the Glock 31 in various media.

Glock 31: Related Models

The firearm models related to the Glock 31 include:

Learn to Shoot Safely in Colorado Springs

Reading about a firearm is a start — training is what builds confidence. Colorado Boots Firearms Instruction offers the Colorado Concealed Carry License Training, Handgun Fundamentals and Intro to Rifle courses.

Text Us About Classes Call 719-782-8793 See Class Schedule

Related Firearms in the Library

Upcoming Classes

New class dates are posted regularly. Call 719-782-8793 for the next available date or text us.

See the full class schedule →