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Grand Power has been doing things differently for a long time, and the Q1S MK23 is a good example of why that matters. While most compact 9mms use a tilting barrel lockup, the Q1S uses a rotating barrel system where the barrel locks and unlocks via a rolling pin and a specially curved surface rather than tipping up and down during the cycle. That means less mass shifting rearward and downward with each shot, which translates to a noticeably smoother recoil impulse and reduced muzzle flip. It's a legitimate functional advantage, not just a talking point.
Inside that textured polymer grip sits a CNC-milled steel chassis that serves as the true frame of the pistol. It's not a stamped insert or a thin rail system. The slide is also machined from a single piece of steel, and the bushingless bull barrel pairs with the rotating lockup to keep the bore axis low. The result is a pistol that punches well above its size when it comes to follow-up shot speed and overall control. The trigger is striker-fired single action with an autonomous trigger safety, meaning there's no external safety to disengage. It's clean, light, and crisp without being reckless for a carry application.
The Mk23 designation is Grand Power's way of flagging their updated lineup, and the slide on this version reflects that with an optic cut and serrations out of the box. Four mounting plates are included, covering footprints for Trijicon RMR, Vortex Venom/Docter Noblex/MeoRed 30, C-MORE STS2, and Shield SMS, so you're not stuck buying adapters before you can mount a dot. The grip profile on the Q1S is intentionally slimmer than the standard Q1, borrowing sizing closer to the P11, which makes it a meaningful step up in concealability. Controls are fully ambidextrous, and the magazine backplate helps fill out the grip for those with larger hands. Three 12-round magazines are included, giving you spares from day one.
Instead of a conventional Browning-style tilting lockup, the Q1S barrel rotates to lock and unlock using a rolling pin and curved cam surface. This means the barrel stays in line rather than dipping rearward during the cycle, which keeps the bore axis lower and shifts less mass in unpredictable directions. In practice, most people find it noticeably softer and flatter shooting than a similarly sized tilting-barrel compact.
The MK23 slide comes with four mounting plates included in the box, covering the Trijicon RMR, Vortex Venom/Docter Noblex/MeoRed 30, C-MORE STS2, and Shield SMS footprints. These cover the most common micro red dot options on the market, so you can typically get a dot mounted without buying any additional hardware.
The Q1S was specifically designed with carry in mind. The grip is shorter and slimmer than the standard Q1, making it easier to conceal while the 3.66-inch barrel keeps the overall length compact. The striker-fired trigger with autonomous trigger safety means it's ready to go without manipulating an external lever. The 12+1 capacity is solid for a pistol this size.
Both pistols share the same barrel length and overall length, but the Q1S uses a significantly smaller grip profile borrowed from Grand Power's P11 platform. That reduced grip makes the Q1S more suitable for smaller hands and tighter concealment, though it also brings the capacity down from 15 rounds to 12. The barrel locking system, slide, and optic-ready setup are otherwise the same between the two.
Because the Q1S shares the same external dimensions and sights as Grand Power's P11, holsters designed for the P11 will generally fit the Q1S as well. Grand Power is a niche brand so dedicated holster options are more limited than something like a Glock or SIG, but the P11 compatibility opens up a few more choices. It's always worth confirming fitment with the holster maker before purchasing.
The rotating barrel design does require a slightly different takedown process compared to a typical Browning-action pistol. It takes a little getting used to at first, but becomes straightforward with practice after a few sessions. The process involves pulling the slide rearward while pressing down the takedown tabs, then lifting the slide free from the frame rails.
| UPC | 8588005944670 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 8588005944670 |
| Action | |
| Barrel Length | 3.66" |
| Caliber/Gauge | 9mm |
| Capacity | 12 |
| Color | Black |
| Model | |
| Product Type | Striker Fired |
| Safety | Trigger Safety |
| Sights | 3 Dot |
| Slide Description | Optic Ready/Serrated |
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