Description
The G45 has always been the Glock people reach for when they can't decide between a full-size and a compact, and the Gen 6 sharpens what already worked. It pairs a full-size frame with a shorter G19-length slide, so you get a complete firing grip and 17-round magazine real estate while the 4.02-inch barrel keeps things quick out of the holster. This particular setup ships with three 10-round magazines and the optic-ready slide in black.
What Sets the GLOCK 45 Gen 6 Apart
The headline change is the new flat-faced trigger. It still breaks at the familiar 5.8 pounds, but the flat shoe and slightly shorter reach make the pull feel lighter and more consistent than older Glocks. The frame is where the Gen 6 really earns its name though. The RTF6 dual-texture grip wraps further around than any previous generation, with an integrated palm swell, bilateral thumb ledges, a factory undercut trigger guard that kills the old Glock knuckle, and a taller beavertail that drives your hand high and helps prevent slide bite. Finger grooves are gone, which gives most hands a more natural fit.
Running an Optic on the G45 Gen 6
The slide uses the new Optic Ready System (ORS), which seats your red dot on one of three included adapter plates covering the RMR, C-More RTS, and DeltaPoint Pro footprints. Plate #2 handles the popular RMR pattern, so optics like the Holosun 507C, 508T, and 509T mount up. One thing worth knowing if you're upgrading from a Gen 5: the older MOS plates and optics like the Holosun SCS MOS will not carry over, so you'll be working with the new plate system.
Carry, Duty, and Range Use
Reviewers who've run these hard report the gun shoots flat and gets back on target fast, with the grip texture and undercut doing real work in rapid fire. It's dimensionally true to earlier G45 models, so quality holsters built for the Gen 5 generally still fit. Older Glock magazines drop right in too. Worth noting for tinkerers: the redesigned barrel, extractor, and striker assembly do not interchange with previous generations, so spare parts are Gen 6 specific. For duty, home defense, or range work, this is the most complete factory G45 Glock has put out.
Key Specifications
- Manufacturer: GLOCK
- Model: 45 Gen 6
- Manufacturer Part Number: U64550201
- UPC: 764503074141
- Caliber: 9mm Luger
- Action: Striker-Fired Semi-Auto (Safe Action System)
- Barrel Length: 4.02"
- Overall Length: 7.44"
- Magazine Capacity: 10 Rounds
- Magazines Included: 3 x 10-Round
- Trigger: Flat-Faced, approx. 5.8 lb pull
- Slide: Optic Ready (ORS) with Front and Rear Serrations
- Sights: Fixed Sights
- Grip: RTF6 Texture with Palm Swell and Bilateral Thumb Ledges
- Color: Black
- Frame: Full-Size Crossover Polymer
What’s Included
- GLOCK 45 Gen 6 pistol
- Three (3) 10-round magazines
- Three ORS optic adapter plates (RMR, C-More RTS, DeltaPoint Pro footprints)
- Hard case
- Cable lock
- Manual and documentation
Frequently Asked Questions
What's the difference between the GLOCK 45 Gen 6 and the Gen 5?
The Gen 6 keeps the same crossover concept, a full-size frame with a compact G19-length slide, but adds a factory flat-faced trigger, a more aggressive RTF6 grip texture with an integrated palm swell, a taller beavertail, and a factory undercut trigger guard. The biggest functional change is the slide, which now uses the Optic Ready System (ORS) instead of the older MOS plate setup. Internals like the barrel, extractor, and striker were also redesigned and are not interchangeable with Gen 5 parts.
Which red dot sights fit the GLOCK 45 Gen 6 ORS slide?
The Gen 6 ships with three adapter plates that cover the RMR, C-More RTS, and DeltaPoint Pro footprints. Plate #2 handles the common RMR pattern, so optics like the Holosun 507C, 508T, and 509T will mount up. If you're coming from a Gen 5, note that the older MOS plates and MOS-specific optics will not transfer over to this new system.
Will my Gen 5 holsters and magazines work with the G45 Gen 6?
Yes on both counts. The Gen 6 is dimensionally true to the earlier G45, so quality holsters built for previous generations generally fit just fine. Older Glock magazines also drop right in, so any G17 or G45 mags you already own will run in this pistol.
Why does the GLOCK 45 ship with three 10-round magazines?
This particular SKU is configured with three 10-round magazines rather than the standard 17-round mags. You still get the full-size grip frame, which leaves room to run higher-capacity magazines later if you want them. Three mags in the box is handy for keeping a rotation going at the range.
Is the GLOCK 45 Gen 6 a good choice for home defense and duty use?
It's built for exactly that. The full-size frame gives you a complete firing grip for better recoil control, while the shorter slide clears the holster quickly and keeps a solid sight radius. The optic-ready slide, refined ergonomics, and reliable Safe Action system make it well suited to duty, home defense, and range training alike.
How does the new flat-faced trigger feel on the Gen 6?
It still breaks at the familiar 5.8-pound weight, so the Safe Action system itself hasn't changed. The flat shoe and slightly shorter trigger reach make the pull feel lighter and more consistent than a standard curved Glock trigger. Many people find it a noticeable improvement right out of the box without needing an aftermarket swap.





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