Glock 20/21 | MICRO CONVERSION KIT (Gen2)

From: $329.00

(39 customer reviews)

Your Glock MCK Selection:

Glock 20/21

Optional: $25 OFF MRD | Micro Red Dot (14 Red & Green Settings, Includes Riser) Sights

Improve your accuracy and vision with the Micro Red & Green Dot from CAA and Crimson Trace. Includes Riser.

Optional: 50% OFF MCK Advanced Kit

Front & Rear Flip Up Sights & OPS May Vary Based On Inventory

All of the BEST accessories available for your MCK all in one place! Save a few dollars when you bundle our 500 lumen MCK mounted flashlight/housing, backup flip sights, thumbs rests, sling and sling swivel. Everything to get you to the range and accurate right out of the box!

Optional: Titan 3rd Generation Charging Handle for Glock/P80/PSA Dagger & Gen 1/2/3 MCK's

Works With: Glock 17/19/19X/20/21/22/23/24/25/26/27/28/29/30 31/32/33/34/35/36/37/38/39/40/41/45 + P80 + PSA DAGGER COMPATIBLE WITH GLOCK HANDGUNS GENERATION 1-5

Earn up to 62 Points.


  • MCKs Are Made In USA
  • Free Shipping In US Orders $150+
  • Secure Checkout
  • 2 Year Warranty

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*Compatible w/ Glock 20 / 21 / 21 SF (models that have Universal Glock Rail)*

*Not compatible with:

  • Gen1 & Gen2 models of Glock
  • Models that have Picatinny Rail

*All Accessories Sold Separately


This Micro Conversion Kit is a lightweight and sturdy platform for Glock handguns. It has a barrel shroud made of aluminum with a polymer body. The extended stabilizer, which now comes standard, enables one-handed firing for better shooting performance. It also comes with a Velcro® strap fastener which provides a custom fit to any user. MCK is the most cost effect conversion kit in the world. Fastest assembly/disassembly conversion kit on the market. Improving accuracy dramatically up to 200 yards. We are the exclusive licensee of the SB tactical stabilizer brace for the handgun conversion kits.

Top Features:

  • No pistol disassembly required – Just place pistol into the kit, lock, and go
  • Allows for multiple handgun models into one platform
  • Top Picatinny rail, allowing a combination of sights and/or optics
  • Side Picatinny rails for mounting additional accessories, i.e… thumb-rests
  • Ambidextrous, fast and easy handling
  • Right-folding stock/arm brace for easy concealment and carry, locks in the folded position
  • Front spare magazine holder for a faster reload
  • Built-in charging handle allowing for quicker assembly/disassembly
  • Exposed slide release for direct contact and easier use
  • Allows for quicker assembly-disassembly
  • Perfect for safe action
  • Fits multiple handgun models
  • Easy concealment and carry
  • Perfect for law enforcement

MCK Measurements:

  • Width: 2.48?
  • Height: 5.70?
  • Length: 13.70?

What is included in the Advanced Upgrade Kit:

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

Additional information


Glock 20/21


Gen 2 Stabilizer, NFA Gen 2, Short Stabilizer


Black, Tan – FDE, Green – ODG, Grey – Tungsten, White, Blue, Red, Orange, Pink, Clear +$25, True Timber Strata (Add 100), True Timber Viper (Add 100), Mossy Oak (Add 100), Real Tree (Add 100)

Your Glock MCK Selection:

Weight 5 lbs
Dimensions 17 × 8 × 7 in
Handgun Model For Gen 2 MCK

Glock 20/21

Color / Pattern For Gen 2 MCK

Black, Green – ODG, Gray – Tungsten, Tan – FDE, White, Red, Blue, Orange, Pink, Clear (Add 25)

Stabilizer / Stock For Gen 2 MCK

Gen 2 Stabilizer, Gen 2 Stock, Short Stabilizer, TAC (No Stabilizer)

Optional: $25 OFF MRD | Micro Red Dot (14 Red & Green Settings, Includes Riser) Sights

Weight 1 lbs
Dimensions 8.5 × 12 × 2 in

Optional: 50% OFF MCK Advanced Kit

Weight 1 lbs
Dimensions 8.5 × 12 × 2 in

Optional: Titan 3rd Generation Charging Handle for Glock/P80/PSA Dagger & Gen 1/2/3 MCK's

Weight 1 lbs
Dimensions 3 × 1 × 1 in

Reviews & Ratings

(39 customer reviews)

39 reviews for Glock 20/21 | MICRO CONVERSION KIT (Gen2)

  1. JS


    I already had the Gen 1 for my Glock 20/21 (I utilize the system for my Glock 20). I love the increased capability with having an actual magazine retention/release button, compared to just relying on friction to work and gravity NOT to work with every shot fired from my system. I also love the rigidity in the brace on this system, versus the Gen one which is just rubber, even though I did love how it would just eat the recoil. Absolutely LOVE IT!!!!

  2. JM

    Jason McNeely

    Love my gen 2 mck…didn’t take long at all for shipping!

  3. JW

    Jerald Williams

    It is absolutely beautiful it works like a charm

  4. DM

    Donny Matthews

    Haven’t tested it yet but looks well made

  5. EL

    Edgar Lopez

    I love the MCk I like how it works mechanically put it in my Glock 21 it’s pretty easy. The only thing I didn’t like too much was the mag holder when I put in the mag holder it seems to be a little loose doesn’t fit like nice and snug so it seems to be some play. Besides that it shoots great it’s pretty accurate and I still didn’t even put on my sites works good I bought generation two and generation one I’m happy with it

  6. MK

    Marcus Kolpack

    Well I bought this kit and was alittle skeptical. But after putting this in my hands it’s build quality is far better then what appears to the eye it doesn’t feel like a cheap piece of plastic especially with the aluminum rail on top will shoot it soon and upload pictures in the near future

  7. RB

    Reenen Biddulph

    I bought an MCK for my G22 some time ago and liked it so much I decided to get one for my G20 too. They both have lights, lasers, red dots, flip up sights, and slings. I have never been a good shot with pistols but the MCKs have changed that completely and my shooting is a lot more fun, comfortable and accurate now.

  8. DS

    David Siladke


  9. KS

    Kelly Sutton

    I just took it to the range for the first time work just like I thought it should. Now I’m thinking about another for my S&W’s 9 and 40

  10. KT

    Kevin T.

    I am a 30+ years Law Enforcement Officer and am absolutely beyond impressed with the quality of this product. Keep up the Great work gentlemen !!!
    Investigator Kevin Thomas
    J.C.S.O. Georgia

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