Description
Grand Power is a Slovak manufacturer that has been building pistols around a rotating barrel action for decades, and the P1S MK23 is one of the better expressions of that design in a carry-friendly size. The concept is straightforward but the results are hard to argue with: instead of the barrel tilting rearward during the firing cycle like virtually every other semi-auto on the market, it rotates. That means less mass moving up and off-axis in your hand, a lower bore axis, and noticeably reduced muzzle flip. People who have shot other Grand Power pistols talk about how soft they are to shoot, and the P1S is no exception.
What Makes the P1S MK23 a Serious Carry Option
The P1S is essentially a hybrid build, combining the shorter, more concealable grip profile of the P11 with the slide and 3.66-inch barrel from the P1. The result is a gun that carries more easily than its full-size siblings without giving up the balance and handling that make Grand Power pistols feel so good in the hand. At 1.34 inches wide and just over 7 inches overall, it fits the subcompact category without feeling cramped. The grip features deep, aggressive checkering molded in without interchangeable backstraps, which keeps the profile slim and consistent. Both male and female shooters have found it comfortable, which speaks to how well the grip geometry was thought out.
Being hammer-fired DA/SA with a manual thumb safety, the P1S is built for carry the traditional way. The first shot in DA mode gives you a longer, heavier pull; once the hammer is back, single-action takes over with a notably cleaner break. Trigger pull weights come in at roughly 4.5 to 5.6 lbs in single action and around 7.9 to 9 lbs in double action, which is a respectable and practical split. A firing pin block adds another layer of passive safety on top of the manual thumb lever.
P1S MK23 Optics and Slide Upgrades
The MK23 generation brought meaningful improvements across the Grand Power line, and the P1S got all of them. The slide is optic-ready with four included mounting plates that cover the most popular red dot footprints: Trijicon RMR, Vortex Venom/Docter/Noblex/MeoRed 30, C-More STS2, and Shield SMS. That covers a wide enough range of dots that most people won't need to go hunting for an adapter. The slide also received a redesigned profile with more aggressive serrations, and the grip texture on the MK23 version was enhanced over earlier generations. The upgraded Mk23 locking system rounds out the package.
Grand Power pistols are built on a billet steel internal chassis, which gives this polymer-framed gun more rigidity than the frame alone would suggest. All controls are fully ambidextrous, including the safety, mag release, slide lock, and takedown tabs. The accessory rail up front is ready for a light or laser whenever you want one. Three-dot sights come standard, and the rear sits in a dovetail for windage adjustment.
Key Specifications
- UPC: 8588005944663
- Manufacturer: Grand Power
- Model: P1S MK23
- Caliber: 9mm Luger
- Action: Double Action / Single Action (DA/SA)
- Barrel Length: 3.66 in (93 mm)
- Overall Length: 7.2 in (183 mm)
- Height (w/o magazine): 4.7 in (119 mm)
- Width: 1.34 in (34 mm)
- Weight (unloaded): 1.41 lbs (640 g)
- Capacity: 12+1
- Safety: Manual thumb safety, firing pin block
- Sights: 3-Dot
- Slide: Optic-ready / Serrated
- Frame: Polymer with billet steel internal chassis
- Color: Black
What’s Included
- Grand Power P1S MK23 pistol
- Magazine (12-round)
- 4 optic mounting plates (Trijicon RMR, Vortex Venom/Docter/Noblex/MeoRed 30, C-More STS2, Shield SMS)
- Trigger lock
- Bore brush
- Owner's manual
Frequently Asked Questions
What makes Grand Power's rotating barrel different from a standard pistol?
Most semi-automatic pistols use a Browning-style tilting barrel that dips rearward and downward during the firing cycle. Grand Power's design instead rotates the barrel on a roller bearing, which means the barrel stays in line rather than angling away. This keeps mass moving more consistently and results in reduced felt recoil and muzzle flip compared to a traditional tilt-action at the same size and caliber.
How does the DA/SA trigger work on the P1S MK23?
The first shot is fired in double action, meaning a longer, heavier trigger pull that both cocks and releases the hammer. Every subsequent shot fires in single action with a shorter, lighter pull since the cycling slide re-cocks the hammer automatically. The manual thumb safety can be engaged when the hammer is cocked, similar to how a traditional 1911 or CZ operates.
Which red dot sights are compatible with the P1S MK23 optic cut?
The MK23 slide ships with four mounting plates that fit the Trijicon RMR, Vortex Venom/Docter/Noblex/MeoRed 30, C-More STS2, and Shield SMS footprints. Those four plates cover the vast majority of popular carry-sized red dots on the market, so most people can mount their preferred optic without hunting down additional adapters.
How does the P1S compare to the full-size Grand Power P1 MK23?
The P1S uses the shorter, more compact grip frame from the P11 platform paired with the same 3.66-inch barrel and slide as the standard P1. This brings the capacity down to 12 rounds versus 15 in the full-size P1, but the trade-off is a lower-profile grip that carries more discreetly. The barrel length and width stay the same, so the shooting experience is very similar.
Is the P1S MK23 a good option for concealed carry?
It fits squarely in the subcompact category at 7.2 inches long, 4.7 inches tall, and 1.34 inches wide, which is a proven carry-friendly footprint. The deeply checkered grip gives solid purchase without adding bulk, and the DA/SA action with a manual safety gives you multiple layers of control for everyday carry. The rotating barrel's recoil reduction is a genuine advantage when you need fast, accurate follow-up shots.
Are the controls on the P1S MK23 ambidextrous?
Yes, all controls are fully ambidextrous, including the thumb safety, magazine release, slide lock, and takedown tabs. This is a consistent feature across Grand Power's entire handgun lineup and is a legitimate advantage over a lot of guns that only offer reversible or partially ambidextrous controls.





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