Grand Power P1 Mk23 9mm Luger 3.66" 15+1 Stainless DA/SA Pistol

The Grand Power P1 Mk23 (UPC 8588005808651) is a compact DA/SA hammer-fired 9mm Luger pistol manufactured in Slovakia and imported by Global Ordnance. This is the full-capacity variant of the P1 platform, shipping with a 15-round magazine. The Mk23 series is Grand Power's optics-ready generation — the stainless steel slide is factory-milled for micro red dot mounting and ships with four adapter plates.

The P1 Mk23 is built around Grand Power's rotary-locking barrel system, derived from the company's original K100 military pistol. The barrel rotates inside the slide to lock and unlock rather than tilting downward like the Browning-style action used in most modern handguns. This keeps the bore axis aligned throughout the cycle, producing less muzzle flip and felt recoil. The system was developed for European military and law enforcement contracts and has been proven over more than a decade of service.

The DA/SA hammer-fired action gives the shooter a long, deliberate double-action first pull followed by short, crisp single-action pulls for all subsequent shots. A frame-mounted manual thumb safety allows the pistol to be carried cocked-and-locked in single action, or decocked for a double-action first shot. A passive firing pin block provides drop safety regardless of carry condition.

The 3.66-inch bull barrel is machined from stainless steel. The bushingless design eliminates the barrel bushing and link found in many hammer-fired pistols, simplifying takedown and reassembly while maintaining consistent lockup and accuracy. The barrel hood mates precisely with the ejection port for repeatable precision shot to shot.

The stainless steel slide features the enhanced Mk23-series front and rear serrations — deep, aggressive cuts for positive grip during press checks and malfunction clearance drills. The factory optics cut on top of the slide accepts micro red dots using one of the four included adapter plates, covering the most popular footprints: Vortex Venom / Docter, Trijicon RMR, C-MORE STS2, and Shield SMS / RMS. Fixed iron sights come installed from the factory.

The polymer frame uses an embedded steel chassis that provides the structural rigidity of an all-metal frame without the weight penalty. The grip is textured for a secure hold and ships with interchangeable backstraps to adjust circumference and palm swell. A Picatinny accessory rail is molded into the dust cover for mounting weapon lights and lasers. All controls — slide stop, magazine release, and manual safety — are fully ambidextrous.

Key Features

• Rotary-locking barrel system — derived from the K100 military platform — reduces felt recoil and muzzle flip for faster, more accurate follow-up shots
• DA/SA hammer-fired action with manual thumb safety — carry cocked-and-locked or decocked
• Optics-ready Mk23 slide with four adapter plates — compatible with Vortex Venom / Docter, Trijicon RMR, C-MORE STS2, and Shield SMS / RMS footprints
• 15+1 capacity in 9mm Luger — full capacity for duty, home defense, and competition
• 3.66-inch stainless steel bushingless bull barrel for accuracy and simplified maintenance
• Stainless steel slide with enhanced Mk23-series front and rear serrations
• Polymer frame with embedded steel chassis — lightweight yet structurally rigid
• Fully ambidextrous slide stop, magazine release, and manual safety
• Interchangeable backstraps for customized grip fit
• Picatinny accessory rail for weapon lights and lasers
• Fixed iron sights installed from the factory
• Passive firing pin block for drop safety
• Manufactured in Slovakia, imported by Global Ordnance