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Glock 20 Review: Specification, Performance, and Price

Glock 20 Specs Glock 20 Specs Glock 20 Specs

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The Glock 20 is a semi-automatic, recoil-operated, striker-fired pistol chambered in 10mm Auto, designed for substantial firepower and superior performance. The Glock 20 has a 4.61-inch barrel and a lightweight polymer frame. The standard magazine capacity is 15 rounds, providing ample firepower. The Glock 20 delivers high velocity and significant stopping power.

The Glock 20 is reliable, with Glock’s Safe Action System and a corrosion-resistant finish. The Glock 20 Gen 4 model includes a dual recoil spring assembly and interchangeable backstraps for better ergonomics. The Glock 20, priced between $600 and $700, offers high performance and durability. The Glock 10mm is ideal for self-defense, law enforcement, and outdoor use, combining Glock's reliability with the potent 10mm Auto cartridge, making it a versatile and effective firearm.

Main Specs of Glock 20
Glock 20 Specs Glock 20 Spec Value
Caliber10mm Auto
Magazine CapacityStandard: 15
Weight (Unloaded)30.89 oz / 876 g
Overall Length8.07 in / 205 mm
Barrel Length4.61 in / 117 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 for barrel and slide
Grip TextureRough texture for improved grip
Accessory RailYes
Field Stripping EaseUser-friendly
Recoil Spring SystemDual recoil spring system
Price$600 - $700
WarrantyLimited 1 Year
GenerationGen 4
Firing ModeSemi-automatic
Trigger SystemSafe Action
Holster CompatibilityCompatible with various holsters
Muzzle VelocityVaries with ammunition
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 20 Guns?


The Glock 20 has a 4.61-inch barrel, an overall length of 8.07 inches, and a standard 15-round magazine capacity, balancing accuracy and maneuverability. The Glock 20 is chambered in the 10mm Auto caliber, which in combination with size makes the Glock 20 one of the most powerful types of Glocks ever made.

Key specs include the Glock Safe Action system with three automatic safeties: trigger safety, firing pin safety, and drop safety, ensuring secure handling. The Glock 20 has a polymer frame that provides durability and lightweight, with a textured grip for better control.

The Glock 20 features a reversible magazine catch for ambidextrous use, fixed sights for reliable aiming, and a design that supports low recoil for quick follow-up shots. These features, combined with the powerful 10mm Auto cartridge, make the Glock 20 a versatile and reliable choice for personal defense and outdoor use.


How does Glock 20 differ from Glock 21?


The Glock 20 and Glock 21 are both full-sized pistols, differing mainly in caliber. The Glock 20 is chambered in 10mm Auto, and the Glock 21 in .45 ACP. Both models feature a 4.61-inch barrel and an overall length of 8.07 inches. The standard magazine capacity is 15 rounds for the Glock 20 and 13 rounds for the Glock 21.

Both pistols share the Glock Safe Action system, which includes trigger safety, firing pin safety, and drop safety. They also feature a durable polymer frame and a textured grip for enhanced control. The key difference in recoil is significant, with the 10mm Auto in the Glock 20 providing more power and recoil compared to the softer shooting .45 ACP in the Glock 21.

While the Glock 20 and Glock 21 share similar dimensions and safety features, the Glock 20 offers more powerful performance, making it suitable for those needing higher stopping power, whereas the Glock 21 is preferred for its softer recoil and reliability with the .45 ACP.


What generation is the Glock 20?


The Glock 20 is available in multiple generations, with the Glock 20 Gen 4 being the most advanced. The Gen 4 includes enhancements such as an interchangeable backstrap system, a dual recoil spring assembly to reduce felt recoil, and a larger, reversible magazine catch for better usability for both right- and left-handed shooters. The Glock 20 Gen 4 offers improved ergonomics, reduced recoil, and enhanced user-friendly features, maintaining the high performance and reliability expected from Glock pistols.


How does the Glock 20 Gun Perform?


The Glock 20 delivers robust performance with its powerful 10mm Auto cartridge, known for impressive stopping power and reliability. The Glock 20 is suitable for self-defense and outdoor applications like hunting and predator protection. The strong recoil is managed by the Gen 4's dual recoil spring assembly, enhancing comfort and accuracy. While not designed for competition, the Glock 20's power and accuracy make it viable in certain competitive contexts. Its full-size frame and barrel contribute to precision, but its primary appeal is defensive power.

Durability is a key feature, with a polymer frame ensuring resilience and lightweight properties for harsh conditions. The Safe Action system with three automatic safeties adds to its reliability. The Gen 4 introduces an interchangeable backstrap system, larger reversible magazine catch, and dual recoil spring assembly, improving ergonomics and user experience.


What was the Glock 20 made for?


The Glock 20 was made for self-defense and outdoor use, offering significant power and reliability through its 10mm Auto chambering. This powerful cartridge provides substantial stopping power, making the Glock 20 suitable for personal protection against both human threats and large predators.

Applications of the Glock 20 include civilian self-defense, law enforcement, and outdoor activities such as hunting and wilderness protection. The Glock 20's full-size frame and high-capacity magazine, holding 15 rounds, ensure it is ready for prolonged engagements or situations requiring higher firepower. The Glock Safe Action system and durable polymer frame contribute to its resilience and dependable performance in various demanding conditions.


Who uses Glock 20?


The Glock 20 is used by a diverse range of individuals, including civilians, law enforcement officers, and outdoor enthusiasts. Civilians often choose the Glock 20 for personal defense due to its powerful 10mm Auto cartridge, which provides substantial stopping power. Law enforcement officers may use the Glock 20 as a duty weapon, particularly in situations where high firepower is necessary. Outdoor enthusiasts, including hunters and hikers, utilize the Glock 20 for protection against large predators in wilderness areas. The powerful 10mm Auto round is effective against wildlife threats, making it a practical choice for those venturing into remote or potentially dangerous environments.


Is Glock 20 10mm?


Yes, the Glock 20 is 10mm. This caliber provides significant stopping power, making it suitable for both self-defense and outdoor use. The 10mm Auto round offers high velocity and energy, delivering superior ballistic performance. The Glock 20’s design accommodates the higher pressure of the 10mm Auto cartridge, ensuring reliability and durability in various demanding conditions.


Is the Glock 20 the most powerful Glock?


Yes, the Glock 20 is the most powerful Glock. The Glock 20 is chambered in 10mm Auto, a cartridge known for its high velocity and energy, offering superior stopping power compared to other Glock models. The 10mm Auto round provides substantial penetration and ballistic performance, making the Glock 20 suitable for both self-defense and protection against large predators in outdoor environments.


Is the Glock 20 Fully Automatic?


No, the Glock 20 is not fully automatic. It is a semi-automatic pistol, meaning it fires one round per trigger pull. The Glock 20 is designed for controlled, accurate shooting with each trigger press, suitable for self-defense and outdoor use. Fully automatic firearms, which can fire continuously with a single trigger pull, are typically not available for civilian use and are subject to strict regulation. The Glock 20's semi-automatic action ensures reliability and ease of use in various situations.


What are the Advantages of Glock 20?


The main advantage of the Glock 20 is its powerful performance combined with high magazine capacity, making it suitable for self-defense and outdoor use. Further advantages of the Glock 20 are listed below.

  • High Stopping Power: Chambered in 10mm Auto, the Glock 20 offers superior stopping power, effective against both human threats and large predators.
  • Magazine Capacity: The standard magazine holds 15 rounds, providing ample firepower for various situations without frequent reloading.
  • Durability of Glock 20: The Glock 20 features a polymer frame and robust internal components, ensuring consistent performance and longevity under demanding conditions.
  • Glock 20 Safe Action System: Glock's Safe Action System includes three automatic safeties (trigger safety, firing pin safety, and drop safety), ensuring secure handling without the need for a manual safety.
  • Recoil Management: The dual recoil spring assembly in the Gen 4 model reduces felt recoil, enhancing shooting comfort and accuracy.
  • Glock 20 Versatility: Suitable for personal defense, law enforcement use, and outdoor activities, the Glock 20's versatility makes it a practical choice for multiple applications.
  • Reliability: Upholding Glock's reputation, the Glock 20 is known for its reliable operation and minimal maintenance requirements, performing well in various environments.


What are the Disadvantages of Glock 20?


The main disadvantage of the Glock 20 is its significant recoil due to the powerful 10mm Auto cartridge, which can be challenging for some shooters. Further disadvantages of the Glock 20 are listed below.

  • Recoil Management: The high power of the 10mm Auto results in substantial recoil, making it harder to control, especially for less experienced shooters.
  • Size and Weight of Glock 20: The Glock 20's full-size frame and weight can make it less suitable for concealed carry compared to more compact models.
  • Ammunition Cost: 10mm Auto ammunition tends to be more expensive and less widely available than more common calibers like 9mm or .45 ACP.
  • Customization Options: While offering some customization, the Glock 20 has fewer aftermarket options compared to other popular Glock models, limiting personalization.
  • Grip Size of Glock 20: The larger grip required to accommodate the 10mm magazine can be uncomfortable for shooters with smaller hands, affecting handling and control.
  • Glock 20 Magazine Capacity: Although it holds 15 rounds, some users may prefer higher capacity options available in other calibers for extended shooting or defensive situations.

In summary, while the Glock 20 offers powerful performance and versatility, its significant recoil, size, and limited customization options can be drawbacks for some users.


How to Own a Glock 20 Gun?


To own a Glock 20, you must follow the legal procedures required for purchasing a firearm in your jurisdiction. Typically, the next six steps need to be followed.

  • Background Check: Pass a background check mandated by federal law, conducted through the National Instant Criminal Background Check System. This ensures you are legally eligible to purchase a firearm.
  • Firearms License: Depending on your state, you may need to obtain a specific license or permit to purchase or carry a handgun. Check your state and local regulations for specific requirements.
  • Age Requirement: You must be at least 21 years old to purchase a handgun from a federally licensed dealer in the United States.
  • Dealer Purchase: Visit a licensed firearms dealer to select and purchase the Glock 20. The dealer will handle the necessary paperwork and ensure compliance with all local, state, and federal laws.
  • Waiting Period: Some states impose a mandatory waiting period between the purchase and the actual possession of the firearm. This period allows for additional background checks and cooling-off time.
  • Glock 20 Safety Training: While not mandatory in all states, completing a firearm safety course is highly recommended and, in some cases, required before purchase. This training ensures you understand proper handling and safety measures.

By following these steps, you can legally own a Glock 20, ensuring you comply with all relevant laws and regulations while preparing yourself for responsible firearm ownership.


How much does a Glock 20 Cost?


The average cost of a Glock 20 typically ranges from $600 to $700. The price of a Glock 20 can vary based on several factors, including the retailer, geographic location, and current market demand. Prices may also be influenced by optional upgrades such as enhanced sights, custom finishes, or additional accessories, which can increase the overall cost. When purchasing a Glock 20, it’s important to consider these factors to understand the potential variations in pricing.


How many rounds does a Glock 20 hold?


The Glock 20 holds 15 rounds as standard in its magazine. This capacity offers substantial firepower, suitable for self-defense and outdoor applications. The Glock 20 can also use extended magazines, which can increase its capacity up to 30 rounds. This flexibility allows for greater firepower and extended shooting sessions without frequent reloading, making the Glock 20 adaptable to various needs, from everyday carry to scenarios requiring additional ammunition.


What are the Considerations when Purchasing a Glock 20 Handgun?


When purchasing a Glock 20 handgun, several important considerations should guide your decision.

  • Purpose: Determine the primary use of the handgun—whether for self-defense, outdoor activities, or law enforcement. The Glock 20’s powerful 10mm Auto cartridge makes it suitable for these applications.
  • Caliber: The Glock 20 is chambered in 10mm Auto, known for its significant stopping power. Ensure this caliber meets your needs and preferences for power and recoil management.
  • Size and Ergonomics: Consider how the handgun fits in your hand. The Glock 20's full-size frame provides a solid grip, but its size and weight may affect concealability and handling comfort.
  • Magazine Capacity: The standard magazine holds 15 rounds. Assess whether this capacity meets your needs or if you might require extended magazines, which can hold up to 30 rounds.
  • G20 Safety Features: Familiarize yourself with the Glock 20's safety mechanisms, including the Safe Action System with trigger safety, firing pin safety, and drop safety, to ensure confident handling and secure use.
  • Glock 20 Accessories and Customization: Look into available accessories and customization options that can enhance the practicality and performance of the Glock 20, such as sights, grips, and holsters.
  • Price and Budget: Ensure the purchase price aligns with your budget. The average cost of a Glock 20 ranges from $600 to $700. Additional costs may include accessories, ammunition, and maintenance.
  • Recoil Management: The 10mm Auto's high power results in significant recoil. Ensure you are comfortable managing this recoil, especially if you are a less experienced shooter.
  • Legal Requirements: Confirm compliance with local and state laws concerning handgun ownership, including necessary permits, age restrictions, and background checks.

These considerations will help you make an informed decision when purchasing a Glock 20, ensuring it meets your needs and preferences.


What are the Available Accessories for Glock 20 Gun?


The Glock 20 is compatible with a variety of accessories that enhance its functionality, comfort, and performance. Key accessories for the Glock 20 are outlined below.

  • Sight Upgrades for Glock 20: Owners can replace the factory sights with advanced options such as tritium night sights, fiber-optic sights, or red dot sights. These upgrades improve visibility and target acquisition, especially in low-light conditions.
  • G20 Extended Magazines: The standard magazine holds 15 rounds, but extended magazines are available that can increase the capacity to 30 rounds, enhancing the firearm's utility without significantly altering its profile.
  • Glock 20 Holsters: A variety of holsters are designed specifically for the Glock 20, including inside-the-waistband (IWB), outside-the-waistband (OWB), and shoulder holsters. These cater to different carrying preferences and situations, ensuring safe and comfortable carry options.
  • Grip Enhancements: Options such as grip sleeves, talon grips, or stippling kits are available to improve the ergonomic grip of the Glock 20. These enhancements offer better control and comfort during use, especially for extended shooting sessions.
  • Light Attachments for Glock 20: Compact tactical lights can be mounted on the Glock 20. These lights improve usability in dimly lit environments and are especially useful for personal defense and law enforcement applications.

These accessories allow Glock 20 owners to enhance their firearm's performance, comfort, and versatility, making it adaptable to various needs and preferences.


How Compact is Glock 20?


The Glock 20 is not a compact handgun; it is a full-sized pistol. The Glock 20 features a barrel length of 4.61 inches and an overall length of 8.07 inches. This larger size provides enhanced accuracy and control but makes it less suitable for concealed carry compared to more compact models. The Glock 20's full-size frame and substantial weight make it more suitable for open carry, self-defense, and outdoor use rather than for concealed carry.


What Modifications can you do to a Glock 20?


You can perform various modifications to a Glock 20 to enhance its functionality, performance, and aesthetics.

  • G20 Triggers: Installing aftermarket triggers can improve the pull and reset characteristics, making the action smoother and potentially more accurate.
  • Glock 20 Sight: Upgrading to fiber optic, tritium night sights, or red dot sights can enhance target acquisition and accuracy, particularly under low-light conditions.
  • Grip Enhancements: Applying stippling, grip tape, or installing custom grip panels can enhance control and comfort, ensuring a firmer grip under various conditions.
  • Magazine Extensions: Magazine extensions can increase the standard capacity from 15 rounds up to 30 rounds, providing more rounds during use, which is particularly useful in defensive scenarios.
  • Slide Modifications for Glock 20: Modifying the slide with cuts to reduce weight or adding coatings can increase durability and corrosion resistance.
  • G20 Barrel Upgrades: Replacing the factory barrel with a threaded or precision barrel can improve accuracy and compatibility with suppressors.
  • Glock 20 Frame Adjustments: Customizing the frame or adding accessories can ensure compatibility with a wider range of holsters or carrying options.

These modifications can significantly enhance the usability and performance of the Glock 20, tailoring it to specific needs or preferences, whether for self-defense, outdoor activities, or recreational shooting.


How reliable are Glock 20 Guns in Various Conditions?


Glock 20 guns are highly reliable across a variety of conditions. Designed to meet the demanding needs of self-defense, law enforcement, and outdoor use, the Glock 20 maintains its functionality in extreme environments, from freezing cold to hot and humid conditions.

The Glock 20 features a polymer frame and a corrosion-resistant finish on the slide and barrel, enhancing its durability against wear and environmental factors. This construction makes it resistant to dirt, dust, and moisture, ensuring consistent performance with minimal maintenance. The Glock 20's reliability is further supported by its Safe Action System, which provides a consistent trigger pull and operational safety. This system helps prevent accidental discharges and ensures the gun functions reliably in various scenarios. User reports and field tests frequently demonstrate the Glock 20's ability to perform reliably after thousands of rounds and under harsh conditions. This track record highlights its suitability for professional use, recreational shooting, and self-defense, making it a dependable choice for those needing a robust firearm in diverse and demanding scenarios.

The Glock 20 is recognized for its dependability and durability, making it a trusted firearm for various applications and conditions.


What are the Ergonomic Considerations when handling Glock 20  Pistol?


Ergonomic considerations for handling the Glock 20 prioritize comfort, control, and effective management of the powerful 10mm Auto recoil. Key ergonomic aspects of the Glock 20 are described below.

The Glock 20 features a full-size frame with a textured grip designed to provide a secure hold, even in adverse conditions. The larger size and balanced weight distribution of the Glock 20 offer excellent handling characteristics. The grips on the Glock 20 are replaceable, allowing for customization to fit individual ergonomic needs. The controls on the Glock 20, including the magazine release and slide stop, are ergonomically placed to allow easy operation without needing to adjust your grip. When selecting grips or grip modifications for the Glock 20, consider factors such as hand size, grip texture preference, and the conditions in which you will be using the pistol. Proper grip customization can significantly improve handling, accuracy, and the overall shooting experience.

The ergonomic design of the Glock 20, combined with customizable grip options, ensures that shooters can achieve a comfortable and secure hold, enhancing control and performance in various conditions.


What are the Common Characteristics of Glock 20 Pistols?


Glock 20 pistols are recognized for their robust design and powerful performance, combining several key characteristics that enhance their practicality and reliability for self-defense and outdoor use. Key characteristics of the Glock 20 are listed below.

  • Safe Action Trigger System: The Glock 20 features Glock's Safe Action system, incorporating three automatic safeties—trigger safety, firing pin safety, and drop safety—ensuring secure handling and preventing accidental discharges.
  • Polymer Frame: The durable polymer frame contributes to the pistol’s lightweight construction while providing high resistance to impact, corrosion, and adverse environmental conditions.
  • Corrosion-Resistant Finish: The slide and barrel of the Glock 20 are treated with a corrosion-resistant finish, enhancing durability and longevity, especially in harsh conditions.
  • Striker-Fired Mechanism: The striker-fired mechanism offers a consistent and smooth trigger pull, which aids in accuracy and control during shooting.
  • High Magazine Capacity: The Glock 20 has a standard magazine capacity of 15 rounds, providing substantial firepower for various defensive and outdoor scenarios.
  • Full-Size Frame: The full-size frame offers a solid grip and better recoil management, making it suitable for handling the powerful 10mm Auto cartridge.
  • Fixed Sights: The Glock 20 comes with fixed sights that provide reliable target acquisition and aiming, though they can be upgraded for enhanced performance.

These characteristics make the Glock 20 a reliable and efficient choice for those seeking a powerful, full-sized handgun for self-defense and outdoor use.


What is the Suggested Training for handling Glock 20 Pistols?


To handle a Glock 20 effectively, comprehensive training is crucial. Focus on safety, learning to treat every firearm as loaded, keeping your finger off the trigger until ready to shoot, and always pointing the firearm in a safe direction. Familiarize yourself with the Glock 20’s features, including its Safe Action System.

  • Basic Handling: Master basic handling tasks such as loading, unloading, cleaning, and safe storage to ensure efficient operation. Understand the specifics of the 10mm Auto cartridge and how to manage its recoil.
  • Live Fire Exercises: Participate in live fire exercises to improve accuracy, response time, and handling under stress. Practice shooting drills to become accustomed to the 10mm Auto’s power and recoil.
  • Drawing and Holstering: For those using the Glock 20 for self-defense or open carry, practice drawing and holstering the pistol for quick and safe access.
  • Malfunction Clearing: Practice clearing common malfunctions to ensure reliability. Familiarize yourself with the process of addressing misfires, jams, and other potential issues.
  • Advanced Training: Advanced training for personal defense should cover situational awareness, legal aspects of firearm use, and decision-making under stress. Training in these areas will prepare you for real-world scenarios where quick thinking and proper handling are essential.

By following this suggested training regimen, you can handle your Glock 20 safely and effectively in various situations, ensuring both your safety and the safety of those around you.


What caliber is a Glock 20?


The Glock 20 is chambered in 10mm Auto. This caliber is known for its high velocity and substantial stopping power, making it a popular choice for self-defense and outdoor use, particularly against large predators. The 10mm Auto round delivers superior ballistic performance with higher energy and penetration compared to many other handgun calibers. The Glock 20’s design effectively manages the recoil of the 10mm Auto, ensuring controllability and accuracy in a full-size form. This combination of power and manageability makes the Glock 20 an excellent choice for those seeking a powerful and reliable handgun.


Is Glock 20 Better than the Glock 40?


No, the Glock 20 is not necessarily "better" than the Glock 40. Their suitability varies based on user needs and preferences. Both pistols are chambered in 10mm Auto, but they have distinct differences that cater to specific applications. The Glock 20 is a full-sized pistol designed for general use, offering a balance of power and control. The Glock 40, on the other hand, is designed primarily for hunting and target shooting. Each model excels in its specific application, making them incomparable in terms of overall superiority. The choice between the Glock 20 and Glock 40 should be based on individual needs, such as the intended use, barrel length preference, and handling comfort.


Is Glock 20 a good carry gun?


Yes, the Glock 20 can be a good carry gun, but it depends on the user's preferences and needs. The Glock 20 is a full-sized pistol chambered in 10mm Auto, providing significant stopping power with a 15-round magazine capacity. This makes it suitable for self-defense and outdoor use, offering substantial firepower. However, its full-size frame and weight—approximately 30.89 ounces unloaded—make it less ideal for concealed carry compared to more compact models. The larger grip and overall dimensions can be challenging for discreet everyday carry.


Can a Glock 20 stop a bear?


Yes, a Glock 20 can stop a bear. The Glock 20 is chambered in 10mm Auto, a powerful caliber known for its high velocity and significant stopping power. This round is capable of penetrating deep into a bear's vital organs, making it effective for self-defense against large predators. Many outdoorsmen and hunters carry the Glock 20 specifically for protection in bear country due to its reliable performance and the 10mm Auto's proven effectiveness against large, aggressive animals.


What are the Best Glock 20  Holsters?


When looking for the best Glock 20 holsters, you should always keep the main use of your gun in mind. If you use Glock 20 for hunting, then you should go for a Glock 20 chest holster. This Leather Chest Holster distributes the weight of your gun across your shoulders and back, providing great balance and high carry comfort. The holster features a safety strap and a pouch for an extra Glock 20 magazine.


Are there IWB Holsters for Glock 20?


Yes, there are IWB holsters for Glock 20. IWB holsters for Glock 20 provide excellent concealment and comfort for everyday carry, despite its full-size frame. These holsters are crafted from high-quality materials and often feature adjustable retention and cant settings to ensure a secure and comfortable fit. The best Glock 20 IWB holsters secure the firearm inside the waistband, making them suitable for concealed carry while offering durability and ease of access.