Glock 40 Gen4 M.O.S. 10mm: Precision Meets Stopping Power
The Glock 40 Gen4 M.O.S. 10mm Pistol is a top-tier tactical handgun engineered for power, accuracy, and versatility. Its Modular Optic System (MOS) makes it ready for red dot optics, while the 6.02-inch extended barrel and slide enhance accuracy and reduce recoil. Ideal for hunters, competitive shooters, and tactical professionals, the Glock 40 Gen4 delivers 10mm stopping power with legendary Glock reliability.
Explore the Glock 40 for sale, accessories, and upgrades at glock4u.com.
Key Features of the Glock 40 Gen4 M.O.S.
| Feature | Details |
|---|---|
| Model | Glock 40 Gen4 M.O.S. |
| Caliber | 10mm Auto |
| Capacity | 15+1 rounds (10-round magazines available for restricted states) |
| Barrel Length | 6.02 inches |
| Optic Ready | Modular Optic System (MOS) for red dot compatibility |
| Finish | Glock’s durable factory finish |
| Included Accessories | Two 15-round magazines, MOS adapter set |
Glock 40 Gen4 Pricing
| Model | Price Range |
|---|---|
| Glock 40 Gen4 M.O.S. (New) | Starting at $799.99 |
| Used Glock 40 Gen4 M.O.S. | Starting at $650 (depending on condition) |
All Glock 40 purchases include two 15-round magazines, a hard case, and an MOS adapter set for mounting optics. Shop for the Glock 40 for sale at glock4u.com.
Performance and Versatility
The Glock 40 Gen4 delivers exceptional performance with its powerful 10mm Auto cartridge and extended barrel.
1. Extended Barrel for Precision
The 6.02-inch barrel increases sight radius and reduces muzzle rise, providing unparalleled accuracy for long-distance shots.
2. Modular Optic System (MOS)
The MOS platform allows for easy attachment of popular red dot sights, such as:
- Trijicon RMR
- Holosun 507C
- Leupold DeltaPoint Pro
This feature makes the Glock 40 ideal for competitive shooting, hunting, and tactical operations.
3. 10mm Stopping Power
The 10mm Auto caliber delivers superior ballistic performance, capable of taking down large game and offering excellent penetration for self-defense or duty use.
4. Reduced Recoil
The extended slide and polymer frame work together to absorb recoil, making the Glock 40 more manageable during rapid follow-up shots.
Best Accessories for the Glock 40 Gen4 M.O.S.
1. Extended Magazines and Mag Extensions
Boost your capacity with extended options:
- Glock OEM 20-Round Extended Magazine: Perfect for range sessions or tactical scenarios.
- Taran Tactical Innovations Base Pads: Add up to 5 extra rounds to your existing 15-round magazines.
2. Red Dot Optics for the MOS
Upgrade your Glock 40’s sighting system with a red dot optic for faster target acquisition:
- Trijicon RMR Type 2: Rugged and reliable, perfect for tactical applications.
- Holosun 507C: Affordable and feature-packed, with solar backup and shake-awake technology.
- Leupold DeltaPoint Pro: Offers a wide field of view for precision shooting.
3. Glock 40 Holsters
Find the right holster for your Glock 40 Gen4 for secure carry and quick access:
Best Glock 40 Holsters:
- Kenai Chest Holster: Perfect for hunters and outdoor enthusiasts, allowing hands-free carry.
- Safariland 578 GLS Pro-Fit Holster: Adjustable and secure for duty or open carry.
- Blackhawk Serpa CQC OWB Holster: A durable, fast-draw holster for tactical use.
4. Weapon Lights and Lasers
Add tactical lighting for low-light shooting scenarios:
- Streamlight TLR-1 HL: 1,000 lumens of brightness for hunting or tactical use.
- SureFire X300 Ultra: Compact and durable, with excellent beam quality.
5. Threaded Barrel and Compensators
Enhance your Glock 40’s performance with a threaded barrel and compensator:
- Lone Wolf Match Threaded Barrel: Suppressor-ready with enhanced accuracy.
- ZEV Technologies PRO Compensator: Reduces muzzle rise and recoil for faster follow-up shots.
6. Recoil Spring Upgrades
Install a heavier recoil spring for improved cycling with hot 10mm loads:
- Wolff Springs Recoil Assembly: Customizable to match your preferred loads.
- DPM Systems Recoil Reduction System: Smooths out recoil for better control.
Glock 40 Gen4 M.O.S. Review: Why Shooters Love It
Pros
- Extended Barrel: Delivers unmatched accuracy and reduced muzzle rise.
- MOS Platform: Simplifies the addition of red dot optics for enhanced versatility.
- 10mm Power: Excellent for hunting, self-defense, and duty use.
- Durability: Built to Glock’s exacting standards, ensuring reliable performance in harsh conditions.
Cons
- Size: The longer slide and barrel make it less ideal for concealed carry.
- Recoil: While reduced by the extended slide, the 10mm Auto still produces more recoil than smaller calibers.
Frequently Asked Questions About Glock 40 Pricing and Features
1. How Much is a Glock 40?
The Glock 40 Gen4 M.O.S. typically retails for $799.99, with used models starting around $650 depending on condition and included accessories.
2. Is the Glock 40 Good for Hunting?
Yes, the Glock 40’s 10mm Auto caliber is powerful enough for medium- to large-sized game, and its extended barrel improves accuracy for hunting scenarios.
3. Can I Add a Red Dot to the Glock 40 Gen4 M.O.S.?
Absolutely! The MOS platform makes it easy to mount popular red dot sights like the Trijicon RMR or Holosun 507C.
4. What’s the Best Holster for the Glock 40?
For hunting, the Kenai Chest Holster is highly recommended. For open carry or range use, consider the Safariland 578 GLS Pro-Fit.
5. Does the Glock 40 Support Extended Magazines?
Yes, Glock OEM and aftermarket extended magazines (up to 20+ rounds) are compatible with the Glock 40.
Conclusion
The Glock 40 Gen4 M.O.S. is the ultimate choice for shooters who demand power, accuracy, and versatility. Whether you’re hunting, competing, or using it for tactical applications, the Glock 40 delivers unmatched performance with its 10mm Auto caliber, extended barrel, and optic-ready MOS platform.
Order your Glock 40 for sale today at glock4u.com and explore the best accessories, from extended magazines to threaded barrels and red dot optics, to unlock its full potential!

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Zack Wilson (verified owner) –
Good quality product, though the delivery time was longer than anticipated.
Calvin Parker (verified owner) –
Happy with the Glock, but customer service was slow to respond.
Ursula Cox (verified owner) –
Decent service, but it took longer than expected to receive the product.
Wayne James (verified owner) –
Ulysses Bennett (verified owner) –
Glock works well, but the shipping took too long.
Noah Gray (verified owner) –
Quality of the Glock was good, but customer service could be faster.
Jack Turner (verified owner) –
Product was fine, but the delivery process took longer than expected.
Rachel Martin (verified owner) –
Glock is great, but the accessories arrived later than expected.
Darlene Foster (verified owner) –
Satisfied with the Glock, but there was a delay in the shipping process.
Derek Sanders (verified owner) –
Product quality was good, but the shipping process needs improvement.
Robert Scott (verified owner) –
Product was fine, though I had trouble reaching customer support.
Victor Kelly (verified owner) –
Good quality, but the delivery process needs improvement.
Yasmin Perry (verified owner) –
The product quality was good, but the Glock arrived later than expected.
Yvonne Rogers (verified owner) –
Product quality was good, though the packaging was a little damaged.
Walter Foster (verified owner) –
The Glock is great, but the accessories I ordered were missing.
Patricia Baker (verified owner) –
Decent service overall, though shipping could be faster.
Brandon Evans (verified owner) –
Tony Brooks (verified owner) –
Overall satisfied, though it took a while to get the product.
Isaac Ward (verified owner) –
Quality of the Glock was good, but I had a small issue with the delivery.
Lauren Scott (verified owner) –
Glock is great, but there was a minor issue with shipping updates.
Nora Kelly (verified owner) –
Decent experience, though the customer service could be quicker.
Leona Walker (verified owner) –
Glock4u’s customer service is top-notch. They went above and beyond to help me.
Bianca Bailey (verified owner) –
Overall happy with the Glock, though the website could be easier to use.
Edward Wilson (verified owner) –
Product was fine, but there was a lack of updates during shipping.
Benjamin Foster (verified owner) –
Product was fine, but there was a delay in the shipping process.
Yolanda Kelly (verified owner) –
Product was fine, but customer support took a while to respond.
Martin Adams (verified owner) –
Overall happy with the purchase, though there was a delay in shipping.
Xavier Brooks (verified owner) –
Decent Glock, but the delivery time was longer than anticipated.
Colin Turner (verified owner) –
Good quality firearm, but the communication about shipping was lacking.