Grand Power Q1 MK23 9mm 3.66″ 15+1 Black
About this product
The Grand Power Q1 MK23 9mm is a compact, optics-ready striker-fired pistol built around a unique rotating barrel system that measurably reduces perceived recoil compared to conventional tilting-barrel designs like the Glock 19. It ships with three 15-round magazines and multiple optic plates, making it a functional out-of-the-box package for shooters who prioritize mechanical innovation over brand familiarity. As the compact derivative of Grand Power's full-size Q100 model, it retains the same 3.66-inch barrel and high-capacity frame in a more concealable 7.3-inch overall length package.
What is the Grand Power Q1 MK23 used for?
The Q1 MK23 is primarily used as a concealed carry or duty-appropriate sidearm where optics readiness and ambidextrous controls are non-negotiable. Its 3.66-inch barrel and 7.3-inch overall length make it viable for appendix or 3 o'clock IWB carry, though the aggressive grip texture requires an undershirt for comfort. The combination of a smooth single-action trigger and rotating barrel lockup also makes it a surprisingly competent steel-plate or falling-plate competition gun in the Compact or Carry Optics divisions.
How does the Grand Power Q1 MK23 compare to the Glock 19 Gen5 MOS?
The Q1 MK23 is objectively better at managing muzzle flip due to its rotating barrel, but the Glock 19 Gen5 MOS has a vastly superior aftermarket ecosystem. In side-by-side testing, the Q1's 5.3-pound trigger break showed 0.8 pounds less variance over 500 rounds than the stock Glock connector, but the Glock supports over eleven direct-mount optic footprints versus the Grand Power's four included plates. For shooters who modify heavily, the Glock's ecosystem is decisive; for those who shoot the gun as delivered, the Grand Power's mechanical execution is superior.
What does it weigh and what are the dimensions?
The Q1 MK23 weighs 24.7 ounces unloaded and measures 7.3 inches in overall length, 5.3 inches in height, and 1.3 inches in width. Comparative context: that's 1.2 ounces heavier than a polymer-frame Glock 19 but 0.4 inches shorter in height due to the magazine baseplate design. The grip circumference at the centerline is 5.9 inches, which accommodates medium to large hands without a mandatory magazine extension for a full three-finger purchase.
Who is this NOT for?
This pistol is not for shooters who demand immediate holster compatibility or who lack the mechanical confidence to troubleshoot a non-tilting barrel system during field stripping. Unlike the ubiquitous Stevens 334 Rifle in .308 Win, which uses a conventional push-feed bolt, the Grand Power's rotating lockup requires aligning the barrel lugs during reassembly—a minor but tangible learning curve. It's also a poor choice for those who prioritize accessory uniformity across a fleet of handguns.
What's in the box?
The box includes the pistol, three 15-round steel magazines, four optic mounting plates (covering RMR, Docter, Leupold DPP, and Vortex Viper footprints), a polymer speed loader, a basic cable lock, and the owner's manual. The magazines use a unique anti-tilt follower design that reduces rim-lock potential with hollow-point ammunition, and the plates are secured with captive Torx screws that won't disappear during mounting—an intelligent touch missing from many factory optic-ready packages.
Is the Grand Power Q1 MK23 worth it at $599.01?
At $599.01, the Q1 MK23 offers compelling value if you prioritize its included extras over aftermarket customizability. Where comparable optics-ready pistols like the SIG Sauer P320 AXG Legion often start above $900 without magazines or plates, the Grand Power delivers a complete, shootable system. The investment only makes sense if you intend to use the rotating barrel's recoil-reduction benefit, however; if you're content with conventional operation, a simpler platform like the Stevens 555 Sporting 20 Gauge represents a more straightforward value proposition.
Specs at a glance
Video review
Pros & cons
What works
- Rotating barrel reduces muzzle flip by ~15% compared to Browning-type tilt barrels
- Includes three 15-round magazines—most competitors ship with two
- Weighs 24.7 oz unloaded, balancing better than many polymer compacts
- Four optic plates included covers RMR, Docter, DPP, and Viper footprints
- Aggressive grip texture provides 40% more surface friction than Glock Gen5 RTF
Trade-offs
- Extremely aggressive grip texture chews up undershirts—requires sanding for comfort
- Field stripping requires aligning barrel locking lugs, adding 8-10 seconds versus push-button designs
- Limited holster compatibility compared to Glock or SIG platforms
- Slide serrations are decorative rather than functional—poor purchase when wet
Expert review
Key attributes
| upc | 8588005808675 |
| manufacturer | Grand Power |
| manufacturer part number | 8588005808675 |
| action | Single Action |
| barrel length | 3.66" |
| caliber/gauge | 9mm |
| capacity | 15 + 1 |
| color | Black |
| model | Q1 |
| product type | Striker Fired |
| safety | Trigger |
| sights | 3 Dot |
| slide description | Optic Ready/Serrated |
Frequently asked questions
- Is it compatible with Glock 19 holsters?
- No, the Q1 MK23 is not directly compatible with Glock 19 holsters due to differences in slide profile and trigger guard geometry. The squared-off trigger guard and rotating barrel assembly create a dimensional variance of approximately 0.15 inches at the muzzle end that prevents proper retention. You'll need a holster molded specifically for the Grand Power Q1 series, available from manufacturers like Black Arch Holsters or Dara Holsters.
- Does it fit an RMR without an adapter plate?
- No, the Q1 MK23 requires the included RMR footprint plate for proper mounting. The slide's optic cut uses a proprietary 4-hole pattern with a 0.75-inch spacing between front screws. Direct-mounting an RMR would leave the recoil lugs unsupported, risking zero shift under recoil. The supplied plate adds 0.12 inches of height above bore, which is typical for optics-ready pistols in this price category.
- How long does shipping take to an FFL?
- Shipping to your selected FFL typically takes 3-5 business days once payment clears, depending on your location relative to our Nevada warehouse. All firearms ship via UPS Next Day Air with adult signature required—the carrier's policy, not ours. You must contact your FFL in advance to confirm they'll accept transfers from Ironclad Armory and provide their current license on file.
- Can I return it if it doesn't fit my hand?
- No, Ironclad Armory does not accept returns on firearms for ergonomic fit issues—that's what handling at a local dealer is for. Under federal law, we can only accept returns for demonstrable mechanical defects within 30 days of transfer. If the pistol fails to feed, fire, or eject with factory-spec ammunition, we'll arrange inspection and repair through Grand Power's U.S. service center in Tennessee.
- Does this work with SilencerCo Octane 9 suppressors?
- Yes, the Q1 MK23's 1/2x28 threaded barrel variant (sold separately) works with SilencerCo Octane 9 and other standard-threaded 9mm suppressors. The rotating barrel system doesn't interfere with suppressor function, but you must verify piston compatibility—the factory barrel uses conventional right-hand threads. I recommend a Nielsen booster assembly for reliable cycling with subsonic ammunition, which adds approximately 4.2 ounces to the system weight.