Grand Power Q1S Mk23 9mm Luger 3.66" 12+1 Black Striker-Fired Pistol

The Grand Power Q1S Mk23 (UPC 8588005944670) is a compact striker-fired 9mm Luger pistol manufactured in Slovakia and imported by Global Ordnance. The "S" designation indicates a 12-round magazine capacity, making this variant compliant in states and jurisdictions with magazine capacity restrictions. The Mk23 series represents Grand Power's optics-ready generation — the slide is factory-milled for micro red dot mounting.

The Q1S Mk23 is built around Grand Power's signature rotary-locking barrel system. Unlike conventional tilting-barrel designs used in most polymer-frame pistols, the rotary barrel locks and unlocks by rotating inside the slide. This keeps the barrel axis aligned with the slide throughout the cycle, reducing felt recoil and muzzle flip. The result is faster follow-up shots and a noticeably softer shooting impulse.

The 3.66-inch bull barrel is bushingless, which simplifies takedown and reassembly. The barrel is machined from a single piece of steel and does not require a barrel bushing or link, reducing parts count and potential points of failure.

The polymer frame features an ergonomic textured grip. A Picatinny accessory rail is molded into the dust cover for weapon lights and lasers.

Controls are fully ambidextrous. The slide stop and magazine release are accessible from either side without shifting your grip. The striker-fired trigger incorporates an integrated trigger safety blade that blocks the trigger from moving unless deliberately pressed. A passive firing pin block provides drop safety.

The Mk23 slide features enhanced front and rear serrations for positive manipulation during press checks and malfunction clearance. The optics-ready cut on top of the slide accepts micro red dots via included adapter plates. Fixed iron sights are installed from the factory for immediate use without optics.

Key Features

• Rotary-locking barrel system reduces felt recoil and muzzle flip for faster, more accurate follow-up shots
• Optics-ready Mk23 slide with adapter plates included
• 12+1 capacity in 9mm Luger for compliance in capacity-restricted jurisdictions
• Striker-fired action with integrated trigger safety and passive firing pin block
• 3.66-inch bushingless bull barrel
• Fully ambidextrous slide stop and magazine release
• Textured polymer grip
• Picatinny accessory rail for weapon lights and lasers
• Enhanced Mk23-series front and rear slide serrations
• Fixed iron sights installed from the factory
• Manufactured in Slovakia, imported by Global Ordnance