Ever wonder what makes a Glock a Glock? These pistols are famous worldwide, but picking the right “Generation” can feel like cracking a secret code. You see terms like Gen 3, Gen 4, and Gen 5 thrown around, and suddenly, what seemed like a simple purchase becomes confusing.
Choosing the wrong generation can mean missing out on features you really want, like better grip texture or updated internal parts. People often feel stuck between the classic feel of older models and the modern improvements of the newer ones. It’s frustrating when you just want reliable firepower but don’t know which iteration fits you best.
This post cuts through the noise. We will break down the key differences between each Glock generation. You will learn exactly what changed from one version to the next, helping you match the pistol to your hand and your needs. Get ready to understand the evolution of the polymer powerhouse.
Top Glock Gen Recommendations
- Features Gen 5 design and MOS (Modular Optics System) mounting, and includes 4 optics plates, allowing you to mount nearly any micro pistol optic on the market
- Integrated accessory rail lets you add your choice of lights or other accessories
- The drop-free airgun magazine holds 17 BBs (compatible spare magazine part number: 2255231)
- Set your sights on the GLOCK 17 Gen 5 MOS-ready blowback BB pistol. Optics ready to accept your favorite pistol style reflex sight.
- Features the latest in GLOCK design innovation found in the Gen 5 iteration
- Powered by a 12g CO2 cartridge (CO2 NOT included. To ensure a proper seal and for best performance, Umarex-brand CO2 is recommended.)
- The GLOCK 17 Gen 5 MOS BB pistol is the ticket for airgunning with the latest in the GLOCK design evolution
- Features Gen 5 design and MOS (Modular Optics System) mounting, and includes 4 optics plates, allowing you to mount nearly any micro pistol optic on the market
- Integrated accessory rail lets you add your choice of lights or other accessories. The drop-free airgun magazine holds 17 BBs (compatible spare magazine part number: 2276362)
- Fits Mid and full size Generation 4/5 Models 17, 18, 19, 22, 23, 24, 31, 32, 34, 35, 37 ,38,44(NOT FITS Models 20 21 Gen4 and 20SF 21SF). Note: You can not use the additional backstraps when the plug is installed.
- Protects your pistols internal parts from dust/ dirt/Debris/ rain/ snow/ lint etc.
- Engineered for speed, beveled for fast reloads. Aid in guiding the magazine fast into the magazine well.
- CARRY WITH CONFIDENCE: Please feel free to use our portable holster to protect your Glock 19 pistol. This is our high-quality Carbon Fiber Kydex Holster Custom Fit: Glock 19 / Glock 19X / Glock 25 / Glock 44 / Glock 45 (Gen 1-5) & Glock 23 / Glock 32 (Gen 3-4) Pistol. It is not only highly precise, but also rugged and durable, and can be hidden and portable, so you can protect yourself anytime, anywhere.
- US .08” KYDEX HANDCRAFT: It is lightweight, sturdy, durable, sweat-proof, waterproof and washable, providing comfort and confidence in any situation. our holster for glock 19 covers the entire body, effectively preventing sweat and avoiding clips Clothes can be safely and safely used.
- CUSTOMIZE THE CANT: Use the universally and easily available phillips screwdriver to customize the CANT of a 1.5-inch standard belt clip for faster gun removal and best hide under the garment. Nylon + fiberglass belt clips are secure and can be adjusted from 0 to 15 degrees to suit your habits.
- Compatible with Standard and Compact Glock Frames GEN 1, 2, & 3 Series Models: 17, 19, 22, 23, 24, 31, 32, 34, 35, 37, 38.
- The Adapter Goes to the Back Strap of the Glock Frame, Permitting the Shooter's Hand to Conform to the Frame in a More Secure Manner.
- Offers More Control and Allows the Shooter to Index on Target More Efficiently.
- 【Custom IWB Holster Included】The holster is compatible with Glock 17 / 19 Gen 3-5 & Glock 22 /23 /31 /32 Gen 3-4 & Glock 19X /44 /45. Not fits Glock 22 / 23 / 31 / 32 Gen 5. It provides a snug and reliable hold for your firearm, lightweight and compact design ensures comfort for extended wear, making it ideal for concealed carry (Right-hand draw only)
- 【Broad Compatibility with MA1 Light】 This MA1 itself is precision-designed to be fit for Glock 17/ 19/ 19X/ 21/ 34, Taurus G2C/G3C, Sig P320-M17/M18/ P365 X MACRO, M&P 9 3.6"/ 4.0"/SD9 VE, Hellcat Pro/ 1911, and more on detail page. Its secure rail clamp with tightening screws ensures quick and stable attachment or detachment from most rail-mounted firearms
- 【Integrated Rechargeable Battery with Screen Power Indicator】 This MA1 Pistol Light is the first of its kind to include a mini bright screen with a 5-level power indicator. Equipped with a 500mAh magnetic USB rechargeable lithium-ion battery, it delivers 55 to 900 minutes of runtime based on the selected light mode, and fully recharges in just 90 minutes. It provides precise, real-time battery status
- Hunting Gun Cleaning Mat
- Hunting Gun Cleaning Mat
- Hunting Gun Cleaning Mat
Your Guide to Choosing the Right Glock Generation
Glock pistols are famous worldwide. They are tough, simple, and reliable. But Glock has made several “Generations” of these guns over the years. Knowing the differences helps you pick the best one for you. This guide breaks down what you need to know before you buy.
Key Features to Look For
Glock generations mark big changes in the pistol’s design. Focus on these main features when comparing models:
- Frame Texture: Newer Glocks have rougher grips. This helps you hold the gun tightly, even if your hands are sweaty. Older models feel smoother.
- Magazine Release Button: This is how you drop the empty magazine. Newer generations often have larger, easier-to-press buttons.
- Barrel Rifling: Rifling is the grooves inside the barrel that spin the bullet. Newer Glocks often have improved rifling for better accuracy.
- Trigger System: While all Glocks use a consistent trigger safety, the feel and pull weight can change slightly between generations.
Understanding the Generations
Most people talk about Gen 3, Gen 4, and Gen 5. Gen 3 was the standard for a long time. Gen 4 brought interchangeable backstraps (pieces you swap out to change the grip size). Gen 5 removed the finger grooves found on Gen 3 and Gen 4, offering a smoother front strap.
Important Materials Used in Glocks
Glocks use strong, modern materials. These materials keep the gun light but incredibly durable.
- Polymer Frame: The main body of the Glock is made from a tough, high-strength polymer. This plastic composite resists heat, chemicals, and hard impacts. It keeps the gun lightweight for easy carrying.
- Steel Slide and Barrel: The slide (the top moving part) and the barrel are made of steel. Glock uses special treatments, like Tenifer or Nitride coating, to protect this steel from rust and wear.
Factors That Improve or Reduce Quality
What makes one Glock better than another? It often comes down to small design choices.
Quality Boosters:
- Gen 5 Improvements: Many shooters feel the Gen 5 models offer the best quality right out of the box. They often have a better trigger and improved internal parts.
- Upgraded Sights: Factory sights are okay, but aftermarket sights (like tritium night sights) greatly improve your ability to aim quickly and accurately.
- Reliable Magazines: Always use genuine Glock magazines. Cheap, knock-off magazines often cause feeding problems.
Quality Reducers:
- Heavy Modifications: While customization is fun, major changes to the frame or slide by inexperienced gunsmiths can sometimes hurt the gun’s famous reliability.
- Poor Maintenance: Even the toughest gun needs cleaning. Ignoring cleaning schedules will reduce performance.
User Experience and Use Cases
Your intended use matters when picking a generation.
Concealed Carry (CCW):
For carrying every day, smaller models like the Glock 43X (often considered Gen 5 style) or older Gen 3 Slimlines work well. They are thin and do not print (show through clothing) easily.
Home Defense/Duty Use:
Full-sized models (like the Glock 17 or 19) in Gen 4 or Gen 5 are excellent choices. The Gen 4’s changeable backstraps let different users fit the gun perfectly to their hand size. These models handle heavy use easily.
Remember, a Glock’s best feature is its simplicity. No matter the generation, they are built to work when you need them most.
10 Frequently Asked Questions (FAQ) About Glock Generations
Q: What is the biggest practical difference between a Gen 3 and a Gen 4 Glock?
A: The Gen 4 added interchangeable backstraps, letting you change how thick the grip feels. Gen 3s have fixed grip sizes, usually with finger grooves.
Q: Should I avoid buying an older generation Glock?
A: No. Older generations are still incredibly reliable workhorses. If you find a good deal on a well-maintained Gen 3, it is still a solid purchase.
Q: Does the generation affect the gun’s size?
A: No. The generation number (like Gen 5) refers to internal and grip design changes, not the overall length or height of the model number (like G19).
Q: Which generation is best for new shooters?
A: The Gen 5 often gets recommended. Its trigger feels a little smoother than previous generations, which can help new shooters stay on target.
Q: Are Glock Gen 5 parts compatible with Gen 4 parts?
A: Sometimes, but not always. The internal components, especially the trigger housing and sometimes the slide, have changed, so mixing parts can cause problems.
Q: What does “RTF” mean on a Glock?
A: RTF stands for “Rough Texture Frame.” This was a special finish offered on some Gen 3 models that made the grip extremely aggressive and sticky.
Q: Do newer generations shoot more accurately?
A: Yes, slightly. Glock often improves the barrel rifling and crown (the very end of the barrel) with each new generation, leading to marginal accuracy gains.
Q: Is the polymer frame guaranteed to last forever?
A: Glock polymer frames are extremely durable. They are tested to withstand pressures far beyond normal shooting. They are designed to last for decades of regular use.
Q: What is the main benefit of the Gen 5 frame design?
A: The main benefit is the removal of the finger grooves that many shooters disliked on the Gen 3 and Gen 4. This makes the grip feel more neutral for different hand sizes.
Q: Do older Glocks require different types of ammunition?
A: All modern Glock generations function reliably with standard 9mm, .40 S&W, or .45 ACP ammunition. You should always use quality ammo in any generation for best results.
Hi, I’m Tom Scalisi, and welcome to The Saw Blog! I started this blog to share my hands-on experience and insights about woodworking tools—especially saws and saw blades. Over the years, I’ve had the chance to work with a wide range of tools, and I’m here to help both professionals and hobbyists make informed decisions when it comes to selecting and using their equipment. Whether you’re looking for in-depth reviews, tips, or just advice on how to get the best performance out of your tools, you’ll find it here. I’m excited to be part of your woodworking journey!