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SKU: CAAUSA-MCKN21GEN3-PRO Categories: ,

introducing the MCK Gen 3: The Ultimate Tactical Conversion Kit

The MCK Gen 3 is an innovative and versatile tactical conversion kit designed to enhance the functionality and performance of your pistol.

This state-of-the-art kit provides users with an easy-to-install solution that seamlessly transitions from a standard handgun to a compact and accurate shooting platform.

Engineered with precision and made from high-quality materials, the MCK Gen 3 is an essential addition to any shooter’s arsenal.

Superior Design and Unmatched Performance

The MCK Gen 3 boasts an array of features that set it apart from other conversion kits on the market.

With its lightweight and durable design, this conversion kit is built to withstand the rigors of tactical use while providing users with a comfortable and user-friendly shooting experience.

Key Features:

  • Ergonomic Finger Groove Grip: The MCK Gen 3 features an ergonomic finger groove grip that provides improved stability and comfort during shooting.
  • Extendable Stabilizer Brace: The extendable stabilizer brace offers enhanced support and accuracy for a more stable and accurate shooting experience.
  • Integrated Accessory Rails: The kit includes multiple integrated accessory rails that allow users to attach lights, lasers, and other tactical accessories easily.
  • QD Sling Swivel: The quick-detach sling swivel provides users with a convenient way to attach and detach a sling for easy transport and storage.
  • Ambidextrous Charging Handle: The ambidextrous charging handle ensures that left- and right-handed shooters can easily operate the MCK Gen 3.
  • Advanced Barrel Shroud: The advanced barrel shroud not only enhances the overall appearance of your firearm but also helps dissipate heat for improved performance.
  • Easy Installation: The MCK Gen 3 is designed for easy installation, requiring no gunsmithing or permanent modifications to your pistol.


Expand Your Shooting Capabilities with the MCK Gen 3

Whether you’re a professional shooter or a recreational enthusiast, the MCK Gen 3 is the ultimate conversion kit to elevate your shooting experience.

Offering unparalleled performance and versatility, this kit is perfect for users looking to improve accuracy, enhance stability, and expand their firearm’s capabilities.

The MCK Gen 3 is compatible with many popular pistol models, making it an essential addition to any shooter’s collection.

The MCK Gen 3 tactical conversion kit is the perfect solution for those looking to enhance their shooting experience and elevate their pistol performance.

With its superior design, unmatched performance, and easy installation, the MCK Gen 3 is a must-have for anyone serious about their shooting capabilities.

Don’t miss out on the opportunity to own this revolutionary conversion kit – order your MCK Gen 3 today and experience the difference for yourself.

Kit includes.

  • Polymer-pair side rail thumb rests (MCKTHR)
  • Push button sling swivel (MCKPBSS)
  • One-point sling (MCKOPS)
  • A flashlight that fits MCK & Micro Roni 17 / 19 chassis (MCKFL)
  • Polymer front flip-up sight (MCKFBUS)
  • Polymer rear flip-up sight (MCKRBUS)
  • Micro Red Dot (MRD)

Compatible with 20/21 models, but not Gen 1 or 2 Glocks because of the absence of a universal accessory rail . Can be used with a huge array of slide-mounted optics.

The MCK is no longer dependent on the slide and serration for operation—now, you can use aftermarket slides, sights or optics inside your MCK!

More options, accessories, and upgrades for the GEN 3 are coming soon! The GEN 3 includes a new CAA USA charging handle (also sold separately).

Introducing the next generation MCK Gen 3 (Micro Conversion Pro Kit)

The MCK Gen 3 will take America and the world by storm.

Even though its predecessors have become some of the most popular conversion kits in history, we believe this one is better.

Join the MCK Family and be among the first to own it!

CAA USA has considered all of the comments received from their loyal customers when designing the MCK GEN3.

These valuable inputs were essential in the design process.

Our new “CAR-WASH” cleaning system, with a radically changed charging handle and the ability to allow our customers to use their Micro Red Dot slide-mounted optic while inserted into the MCKGEN3, will catapult this fine pistol conversion kit past its Gen 1 predecessor.

Like its predecessors, we believe that the MCKGEN3 will revolutionize and dominate the market.

The fact that we have chosen to make all of our products in America confirms this dedication—as does their incredible popularity.


  • The MCK can now accept a slide with a micro red dot mounted to it.
  • The shooter can easily aim using their own Ruggedized Miniature Reflex Sight while holding the Gen 3. No need for an additional optic.
  • Built-in handgun cleaning solution utilizing a brush/bristle system. The bristles clean the front of the slide during cycling without damaging its finish, removing carbon buildup.
  • This rifle version features a new option for left-handed shooters: an ambidextrous stock that can be folded on either side.
  • The Gen 3 stabilizer/stock has two height options. In a lower position when shooting with RMR/slide mounted optic or in an upper position when using any iron sights—whether pop-up, red dot, etc.—on top Picatinny rail.
  • A new front adapter shields the inside of your MCK from carbon buildup, so it’s easy to clean. Just remove and rinse!
  • The 4.6-inch aluminum top Picatinny rails offer options for any sighting preference, whether iron sights or a scope.
  • The stabilizer has a brush to clean the slide and a holder for the Gen 3 charging handle.
  • The Gen 3 Glock 17 retains all the features of its predecessor, including an aluminum top rail. Spare magazine holder with release button. Suppressor capable (increased to fit 1.56-inch diameter) and ability to fire with the stabilizer/stock folded.

What are you waiting for?

Stock Type

Regular Stock-SBR-All NFA Rules Apply, STAB- NON SBR , NON NFA


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