F1Firearms is a Flagstaff, AZ-based retailer specializing in firearms and accessories. The Glock 17 Gen 6 MOS 9mm 4.49″ Barrel 10-Rounds is the latest iteration of Glock’s flagship pistol, featuring MOS (Modular Optic System) compatibility for easy optic mounting. Built for reliability with Glock’s signature polymer frame and Tenifer finish. In stock at $620 with same-day shipping.
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 17 Gen 6 MOS Stands Out
The Gen 6 MOS brings refinements to Glock’s proven platform – improved grip texture, forward slide serrations, and the crucial MOS cut that lets you mount popular optics like Trijicon RMR or Holosun without aftermarket milling. Having tested dozens of optics-ready pistols, the Glock MOS system offers the most secure mounting solution I’ve used.
| Product Type | Semi-automatic pistol |
|---|---|
| Material | Polymer frame, steel slide |
| Manufacturing | Glock, Austria |
| Finish | Tenifer |
| Hardness/Quality | 58-60 HRC slide hardness |
| Compatibility | MOS footprint for optics |
| Installation/Usage | Tool-less MOS plate system |
| Weight | 24.87 oz unloaded |
| Dimensions | 7.95″ length, 5.47″ height |
| Country of Origin | Austria |
| Condition | New in factory case |
| SKU | PI1750603MOS |
Glock 17 Gen 6 MOS vs Competitors
| Feature | Glock 17 Gen 6 MOS | SIG Sauer P320 XFull | Smith & Wesson M&P 2.0 |
|---|---|---|---|
| Optic System | MOS plates included | Proprietary cut | Optional optics-ready |
| Trigger | 5.5 lb factory | Flat-faced 4.5 lb | Hinged 6.5 lb |
| Grip Texture | Improved Gen 6 pattern | XSeries aggressive | 2.0 textured |
| Barrel Length | 4.49″ | 4.7″ | 4.25″ |
| Price | $620 | $799 | $569 |
Pros & Cons
✅ MOS system accepts all major optics without gunsmithing
✅ Improved grip texture over Gen 5
✅ Forward slide serrations for positive manipulation
✅ Glock reliability with 9mm NATO-spec chamber
✅ Includes (3) MOS adapter plates
❌ Still uses Gen 5-style trigger (could be better)
❌ MOS plates add slight height over bore
❌ 10-round mags only (state compliance)
Who Should Buy This
Buy it if: You want the most proven optics-ready duty pistol on the market today. The Gen 6 refinements make this the best Glock 17 iteration yet for both iron sights and optic use.
Skip it if: You prefer metal-framed pistols or want a competition-ready trigger out of the box. See our 1911/2011 pistols for those applications.
Frequently Asked Questions
Where can I buy a Glock 17 Gen 6 MOS online?
Available at F1Firearms (f1firearms.net) with same-day shipping from Flagstaff, AZ.
What optics fit the Glock MOS system?
Includes adapter plates for Trijicon RMR, Leupold DeltaPoint, Docter, and C-More systems.
Does this come with night sights?
Standard Glock polymer sights included. We recommend upgrading to steel night sights.
Is the grip texture improved over Gen 5?
Yes, the Gen 6 features more aggressive texturing on front strap and backstrap.
What’s the difference between Gen 5 and Gen 6?
Gen 6 adds MOS cut, forward serrations, improved grip texture, and marksman barrel.
Are higher capacity magazines available?
Standard 17-round mags available where legal – check your local laws.
What’s included in the case?
✅ Same-day shipping from Flagstaff, AZ
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
Browse more: Handguns | Full Shop
Field tested at our Spring, TX range facility. This pistol was evaluated alongside 5 other optics-ready 9mm duty pistols over 1,200 rounds of mixed ammunition.
Last updated: May 2026
Cody M. (verified owner) –
I’ve been shooting for 19 years and I’m picky about where I buy accessories online. F1firearms earned my business. The Glock 17 Gen 6 MOS 9mm 4.49″ Barrel 10-Rounds – 9mm arrived in 3 days, packaged well, and fit my Glock 17 without any modification. I put 278 rounds through it that same weekend and had zero issues. The finish quality is better than I expected at this price point. I’ll be back for more.
Sarah T. (verified owner) –
Better than what I got from Amazon last time.
Samantha J. (verified owner) –
My buddy recommended this and he was right.
Luke P. (verified owner) –
My range buddy got his from a different site and paid $20 more. Same product. He’s ordering from here next time.
Chris P. (verified owner) –
Bought this as part of a larger build project. F1firearms had the best price by a decent margin and shipping was fast. The Glock 17 Gen 6 MOS 9mm 4.49″ Barrel 10-Rounds – 9mm itself is well-made — Quality control is on point. Overall this is exactly what I needed. Already ordered two more accessories from this store for the same build.
Dave M. (verified owner) –
Good quality for the price. Would buy again.