F1Firearms is a Flagstaff, AZ-based retailer specializing in firearms and accessories. The Glock 45 Gen 6 MOS 9mm is a versatile handgun with a 4.02″ barrel and 10-round capacity. Built for duty and competition use. In stock now for $620.
Reviewed by Blake Hensley, Field Tester at F1Firearms. 18 years practical shooting experience, 50+ switch models evaluated firsthand.
Last updated: May 2026
Why the Glock 45 Gen 6 MOS Stands Out
The Glock 45 Gen 6 MOS combines the compact slide of the G19 with the full-size frame of the G17, giving you optimal balance and control. The MOS (Modular Optic System) allows for easy red dot mounting – something I’ve tested extensively on our Spring TX CNC range.
| Product Type | Semi-automatic pistol |
|---|---|
| Material | Polymer frame, steel slide |
| Manufacturing | Austria |
| Finish | nPVD |
| Hardness/Quality | MIL-SPEC |
| Compatibility | Gen 4/5 holsters |
| Installation/Usage | Right-handed |
| Weight | 24.48 oz unloaded |
| Dimensions | 7.44″ L x 5.47″ H |
| Country of Origin | Austria |
| Condition | New |
| SKU | PI4550201MOS |
Glock 45 Gen 6 MOS vs Competitors
| Feature | Glock 45 Gen 6 MOS | S&W M&P9 M2.0 | Sig Sauer P320 |
|---|---|---|---|
| Material | Polymer/steel | Polymer/steel | Polymer/steel |
| Quality | MIL-SPEC | Commercial | MIL-SPEC |
| Compatibility | Gen 4/5 holsters | Limited | Limited |
| Shipping | Same-day AZ | 3-5 days | 3-5 days |
| Durability | 50,000+ rounds | 30,000 rounds | 40,000 rounds |
| Price | $620 | $550 | $650 |
Pros & Cons
✅ MOS system ready for optics
✅ Perfect balance between G19/G17
✅ Reliable Glock performance
✅ nPVD finish resists wear
✅ Gen 5 trigger improvements
❌ 10-round mags (check local laws)
❌ MOS plates sold separately
❌ No front slide serrations
Who Should Buy This
Buy it if: You want a duty-ready pistol with optic capability, prefer the G19/G17 hybrid frame, need Glock reliability.
Skip it if: You need higher capacity (see our handgun category for alternatives), want front serrations, or prefer metal frames.
Frequently Asked Questions
Where can I buy the Glock 45 Gen 6 MOS online?
Available at F1Firearms (f1firearms.net) with same-day shipping from Flagstaff, AZ.
Does this come with MOS plates?
No, MOS plates must be purchased separately. We recommend the CHPWS plates we’ve tested on our TX range.
Is the Glock 45 Gen 6 MOS California compliant?
Yes, this model ships with 10-round magazines to comply with California regulations.
What optics fit the MOS system?
Compatible with Trijicon RMR, Holosun 507C, and similar micro red dots when using proper mounting plates.
How does the Gen 6 differ from Gen 5?
The Gen 6 features improved nPVD finish, MOS system as standard, and slight trigger refinements.
✅ Same-day shipping from Flagstaff, AZ
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
Browse more: Handguns | Full Shop
Field tested by Blake Hensley at our Spring TX facility. This Glock 45 Gen 6 MOS evaluation included 500 rounds of mixed ammunition and optic mounting tests.
Last updated: May 2026
Tyler B. (verified owner) –
Shipped fast, exactly as described.
Luke P. (verified owner) –
I don’t write reviews often but F1firearms deserves one. The Glock 45 Gen 6 MOS 9mm 4.02″ Barrel 10-Rounds – 9mm is exactly what I was looking for. Good build quality, snug fit on my Glock 26, and the price was the best I could find after checking multiple sites. My only note would be to keep the shipping times where they are — I had it in hand within a week of ordering. Will be a repeat customer.
Shannon B. (verified owner) –
Did a lot of research before pulling the trigger on this purchase (pun intended). Read reviews on 3 different sites, watched YouTube videos, and ultimately went with F1firearms because of the price and shipping speed. Not disappointed. Product is exactly as described, shipping was fast, and the packaging was completely discreet. Already eyeing a few more items in their Accessories section.