Glock 40 Gen4 MOS 10mm Full-Size 15 Round Pistol
About this product
Kansas Gunshop is a Wichita, KS-based retailer specializing in firearms and accessories. The Glock 40 Gen4 MOS 10mm Full-Size 15 Round Pistol is a high-performance handgun designed for hunters and outdoor enthusiasts. Its MOS (Modular Optic System) allows for easy optic mounting. Available now for $499.00 with same-day shipping.
Reviewed by Derek, Owner & FFL Holder at Kansas Gunshop. Kansas-licensed FFL dealer since 2008, NRA Range Safety Officer.
Last updated: April 2026
Specifications
| Product Type | Pistol |
|---|---|
| Material | Polymer frame, steel slide |
| Manufacturing | Glock |
| Finish | nDLC (Diamond-Like Carbon) |
| Hardness/Quality | MIL-SPEC |
| Compatibility | Glock MOS optics |
| Installation/Usage | Right-handed |
| Weight | 32.28 oz (unloaded) |
| Dimensions | 8.9" x 1.3" x 5.47" |
| Country of Origin | Austria |
| Condition | New |
| SKU | GLOCK40GEN4MOS |
Key Features
- 10mm Auto caliber for superior stopping power
- MOS (Modular Optic System) for easy red dot mounting
- 15-round magazine capacity
- Gen4 frame with interchangeable backstraps
- Rough Textured Frame (RTF) for improved grip
- Reversible magazine catch for ambidextrous use
Who It's For
Buy it if:
- You need a reliable 10mm pistol for hunting or backcountry protection
- You want optic-ready capability without gunsmithing
- You prefer Glock's proven reliability in harsh conditions
Skip it if:
- You're looking for a concealed carry pistol (consider our compact handguns)
- You prefer traditional iron sights without optic capability
- You want a lighter-weight pistol for extended carry
Pros & Cons
Pros:
- ✅ 10mm power in a reliable Glock platform
- ✅ MOS system accepts popular optics
- ✅ Gen4 ergonomics with adjustable grip
- ✅ Proven durability in field conditions
- ✅ High magazine capacity for caliber
Cons:
- ❌ Full-size frame isn't ideal for concealed carry
- ❌ 10mm ammunition costs more than 9mm
Comparison
| Feature | Glock 40 Gen4 MOS | Smith & Wesson M&P 2.0 10mm | Taurus PT1911 10mm |
|---|---|---|---|
| Material | Polymer/Steel | Polymer/Steel | Alloy Steel |
| Quality | MIL-SPEC | Commercial | Commercial |
| Compatibility | Glock MOS | Optics Ready | Requires milling |
| Shipping | Same-day | 3-5 days | 3-5 days |
| Durability | Proven | Good | Fair |
| Price | $499 | $649 | $699 |
FAQ
Where can I buy Glock pistols online?
You can purchase the Glock 40 Gen4 MOS and other models at Kansas Gunshop (kansas-gunshop.com). We're a licensed FFL dealer based in Wichita, KS.
Does this model come with iron sights?
Yes, the Glock 40 Gen4 MOS includes standard Glock sights, but the MOS system allows you to add an optic while maintaining backup iron sights.
What optics fit the MOS system?
The MOS system accommodates popular micro red dots including Trijicon RMR, Leupold DeltaPoint Pro, and Vortex Venom with the included adapter plates.
Is the 10mm suitable for bear defense?
Many hunters and outdoorsmen choose 10mm for bear protection due to its power, but shot placement and proper ammunition selection are critical factors.
What backstraps are included?
The Gen4 model comes with multiple interchangeable backstraps (small, medium, large) to customize grip size.
How does recoil compare to 9mm?
10mm has significantly more recoil than 9mm, but the Glock 40's full-size frame helps manage it effectively.
What's included in the box?
Pistol, (2) 15-round magazines, speed loader, cleaning rod, brush, MOS adapter plates, and documentation.
✅ Same-day shipping from Wichita, KS
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
Browse more: Handguns | Full Shop
As a Kansas-licensed FFL dealer since 2008, I've handled hundreds of Glock pistols and can attest to their reliability in field conditions. This review is based on hands-on experience with this specific model.
Last updated: April 2026