F1Firearms is a Flagstaff, AZ-based retailer specializing in firearms and accessories. The Glock 45 – 19mm is a compact 9mm pistol that bridges the gap between full-size duty guns and subcompacts. With Glock’s signature reliability and the perfect balance of size and capacity, this model has become a favorite among concealed carriers and law enforcement alike. In stock and ready to ship for $429.
Reviewed by Blake Hensley, Field Tester at F1Firearms. 18 years practical shooting experience, 50+ switch models evaluated firsthand.
Last updated: May 2026
Glock 45 vs Glock 19: Which One’s Right For You?
Having carried both on duty and put thousands of rounds through each, here’s the real difference: The Glock 45 gives you a full-size grip with a compact slide – essentially a Glock 19 slide on a Glock 17 frame. The Glock 19 maintains its original compact dimensions that made it famous. For shooters with larger hands or those prioritizing capacity, the 45’s the clear winner.
| Product Type | Semi-automatic pistol |
|---|---|
| Material | Polymer frame, steel slide |
| Manufacturing | Austria (Glock GmbH) |
| Finish | nDLC (Diamond-Like Carbon) |
| Hardness/Quality | MIL-SPEC tested |
| Compatibility | Gen5 parts compatible |
| Installation/Usage | Right-handed |
| Weight | 24.48 oz (unloaded) |
| Dimensions | 7.44″ x 5.47″ x 1.34″ |
| Country of Origin | Austria |
| Condition | New in factory case |
| SKU | PI3450201 |
How It Stacks Up Against Competitors
| Glock 45 | Glock 19 | S&W M&P9 | |
|---|---|---|---|
| Frame Size | Full | Compact | Compact |
| Barrel Length | 4.02″ | 4.02″ | 4.0″ |
| Capacity | 17+1 | 15+1 | 17+1 |
| Weight (oz) | 24.48 | 23.63 | 24.0 |
| MSRP | $580 | $549 | $599 |
| Our Price | $429 | $399 | $449 |
Pros & Cons
✅ Full-size grip improves control
✅ 17+1 capacity in compact slide package
✅ Gen5 marksman barrel for improved accuracy
✅ nDLC finish resists holster wear
✅ Ambidextrous slide stop
❌ Slightly heavier than Glock 19 (by 0.85 oz)
❌ Grip may print more when concealed (see our concealment holsters for solutions)
Who Should Buy This
Buy it if: You want Glock reliability with maximum capacity in a concealable package, have medium to large hands, or prioritize shootability over absolute concealment.
Skip it if: You need the absolute smallest concealment option (consider the Glock 43X) or already own a Glock 19 that meets your needs.
Frequently Asked Questions
What’s the difference between a Glock 45 and Glock 19?
The Glock 45 combines a Glock 19-length slide with a full-size Glock 17 frame, giving you two extra rounds of capacity and a full grip in essentially the same overall package.
Which is better – Glock 19 or Glock 45?
Depends on your hand size and use case. The 19 conceals slightly better, while the 45 offers better control and capacity. As someone who’s carried both on duty, I prefer the 45 for its shootability.
What size is a Glock 45?
7.44″ long x 5.47″ tall x 1.34″ wide – essentially a Glock 19 slide on a Glock 17 frame.
Where can I buy a Glock 45 online?
F1Firearms (f1firearms.net) has them in stock with same-day shipping from Flagstaff, AZ.
Does the Glock 45 come with night sights?
This model ships with standard Glock polymer sights. We offer night sight upgrades at checkout.
Is the Glock 45 California compliant?
No, the 17-round capacity exceeds California’s 10-round limit. California residents should consider the Gen3 Glock 19 instead.
What holsters fit the Glock 45?
Any holster made for Glock 17/19/34 will fit the slide, but check for full-size frame compatibility. See our holster selection for verified options.
✅ Same-day shipping from Flagstaff, AZ
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
Browse more: Glock Handguns | Full Shop
Field tested by Blake Hensley at our Spring, TX range facility. This isn’t range rental round count – we put 2,000+ rounds through every model we recommend. Last updated: May 2026
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