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Command Arms Accessories USA is a developer and distributor of modern tactical accessories, but they are most famous for their Micro Conversion Kit or simply MCK, which has taken the country by storm. This kit allows you to place your pistol into the chassis without disassembling your firearm. It includes an ergonomic finger groove grip provides extra stability, a stabilizing arm brace, is an ambidextrous system, and the top picatinny rail allows for sights or optics.

The Gen 2 upgrades include a new extended stabilizer that allows you to shoot while the arm brace is in the folded position. It features a more robust charging handle, accepts the CAA brass catcher, has an aluminum picatinny rail on top, and they added a magazine catch/release button to the spare magazine holder.

Specifications and Features:

  • Command Arms Accessories Item No. MCKHELLCAT
  • Micro Roni Gen 2 STANDARD Handgun Conversion Kit Chassis
  • No pistol disassembly required – Just place pistol into the kit, lock, and go
  • Allows for multiple handgun models into one platform
  • Ergonomic Finger Groove Grip for more stability
  • 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 chassis arm brace for easy concealment and carry, locks in the folded position
  • Able to be Fired While Arm Brace is in the Folded Position
  • Front Spare Magazine Holder for a Faster Reload
  • Accommodates Suppressor Sights
  • Polymer Chassis
  • Overall Width 2.48″
  • Overall Height 5.70″
  • Overall Length 13.70″
  • Black Finish


  • Chassis and Stabilizing Brace

Does NOT Include Pistol


  • Springfield Armory Hellcat Standard & OSP Models

Does Not Fit:

  • Not Compatible with RDP or PRO Models





CAA Industries


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Command Arms Micro Roni MCK Gen 2 Conversion Kit Hellcat – Black

Our Price:

Command Arms Micro Roni MCK Gen 2 Conversion Kit Hellcat - Black $246.00
  • MSRP$289.00
  • UPC814716050392

Total in stock: 1

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5004 State Highway 74 Cape Girardeau, MO 63701
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