Kansas Gunshop is a Wichita, KS-based retailer specializing in firearms and accessories. The GLOCK G40 GEN4 MOS 10MM is a full-size, modular optic-ready pistol designed for precision and reliability. With a robust 10mm chambering, it stands out in the world of competition and personal defense. Available now for $699.00.
Reviewed by Derek, Owner & FFL Holder at Kansas Gunshop. Kansas-licensed FFL dealer since 2008, NRA Range Safety Officer.
Last updated: April 2026
| Product Type | Pistol |
|---|---|
| Material | Steel, Polymer |
| Manufacturing | Austrian |
| Finish | Black, Tenifer |
| Hardness/Quality | High-grade steel, durable polymer frame |
| Compatibility | Modular Optic System (MOS) |
| Installation/Usage | Simple and intuitive |
| Weight | 31.2 oz (empty) |
| Dimensions | 8.17 in x 5.43 in x 1.38 in |
| Country of Origin | Austria |
| Condition | New |
| SKU | KG-G40-GEN4-MOS-10MM |
Key Features
- 10mm Chambering: Offers superior stopping power and accuracy.
- Modular Optic System (MOS): Allows for easy installation of various optics.
- Textured Frame: Enhances grip and control during rapid fire.
- Adjustable Backstraps: Customizable to fit different hand sizes for optimal comfort.
- Safe Action System: Provides a consistent trigger pull and reliable safety features.
Who it’s For
The GLOCK G40 GEN4 MOS 10MM is ideal for:
- Competitive Shooters: The 10mm chambering and modular optic system make it perfect for precision shooting.
- Personal Defense: The robust design and stopping power ensure you have a reliable sidearm when it matters most.
- Law Enforcement: The adjustable backstraps and safe action system provide the control and safety needed in high-stress situations.
Pros & Cons
- ✅ Superior stopping power with 10mm chambering
- ✅ Modular Optic System for versatile optics
- ✅ Adjustable backstraps for a custom fit
- ✅ Textured frame for enhanced grip
- ✅ Safe Action System for reliable safety
- ❌ Heavier weight compared to smaller pistols
- ❌ Higher price point compared to budget options
Comparison
| Feature | GLOCK G40 GEN4 MOS 10MM | Cheap Import | Premium Brand |
|---|---|---|---|
| Material | Steel, Polymer | Steel, Polymer | Steel, Polymer |
| Quality | High-grade, durable | Good, but less durable | Top-tier, premium |
| Compatibility | MOS | Limited | Extensive |
| Shipping | Same-day from Wichita, KS | Variable | Next-day from major cities |
| Lifespan/Durability | Very durable | Less durable | Extremely durable |
| Price | $699.00 | $60-$80 | $250+ |
FAQ
Where can I buy a GLOCK G40 GEN4 MOS 10MM online?
You can buy the GLOCK G40 GEN4 MOS 10MM at Kansas Gunshop. We offer same-day shipping from Wichita, KS, and a 30-day return policy.
What is the difference between the GLOCK G40 GEN4 MOS 10MM and the GLOCK 41 GEN 4 MOS?
The GLOCK G40 GEN4 MOS 10MM is chambered in 10mm, while the GLOCK 41 GEN 4 MOS is chambered in .45 ACP. The G40 offers more stopping power and is ideal for competition shooting, while the 41 is more suitable for personal defense due to its smaller size and lighter weight.
Is the GLOCK G40 GEN4 MOS 10MM suitable for concealed carry?
The GLOCK G40 GEN4 MOS 10MM is a full-size pistol and may not be the best choice for concealed carry due to its size and weight. However, it is excellent for open carry, competition, and personal defense at home.
What kind of optics are compatible with the GLOCK G40 GEN4 MOS 10MM?
The GLOCK G40 GEN4 MOS 10MM is compatible with a wide range of optics, including popular models from brands like Trijicon, Leupold, and Aimpoint. The modular optic system (MOS) makes it easy to install and adjust your preferred optic.
How does the GLOCK G40 GEN4 MOS 10MM compare to the GLOCK 17 GEN 5 MOS?
The GLOCK G40 GEN4 MOS 10MM is a full-size pistol chambered in 10mm, designed for precision and stopping power. The GLOCK 17 GEN 5 MOS is a full-size pistol chambered in 9mm, making it more suitable for everyday carry and a wider range of applications. The G17 is lighter and has a higher capacity, while the G40 offers more power.
What are the key features of the GLOCK G40 GEN4 MOS 10MM?
The key features of the GLOCK G40 GEN4 MOS 10MM include a 10mm chambering, modular optic system (MOS), textured frame for enhanced grip, adjustable backstraps for a custom fit, and the Safe Action System for reliable safety.
Is the GLOCK G40 GEN4 MOS 10MM right for me?
The GLOCK G40 GEN4 MOS 10MM is right for you if you are a competitive shooter looking for precision and power, or if you need a robust sidearm for personal defense. If you prefer a smaller, lighter pistol for concealed carry, you might want to consider the GLOCK 19 GEN 5 MOS.
✅ Same-day shipping from Wichita, KS
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
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