Mk23 SSX23 NBB Hadron Designs H-Arm

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Hadron Designs H-ARM for MK23/SSX23 Socom NBB


CNC machined upgrade for stock hop arms in Mk23, SSX-23 when using TDC hop adjustment. 
Trusted Hadron Airsoft Designs "H plate" profile contact design, designed to optimise BB to bucking contact patch. For maximum MK23 optimisation.

***Please Note***
Ensure to use a Hadron Airsoft Designs single, dual or triple "Logic" screw plate in the Hadron Airsoft Designs M-TDC frame.

***Installation Steps***

  1. Open Hop assembly.
  2. Remove hop wheel and stock hop arm.
  3. Install chosen barrel and bucking.
  4. Close the Hop assembly.
  5. Install the H-Arm into the hop assembly.
  6. Fit the M-TDC onto the hop unit, with your chosen plate inserted.
  7. Rebuild, and safely test with you chosen weight of BB

14 Reviews Hide Reviews Show Reviews

  • 5
    Hadron H arm

    Posted by Del on 3rd May 2021

    Awesome product. Makes hop-up adjustment easy

  • 5
    Great performance!

    Posted by Mark van Dyke on 6th Apr 2021

    Honestly these are so easy to install and just make my shot consistency really rise. I will say be careful as it is easy to accidentally gouge the bucking with the nub if you over do your tdc screw and try to shoot a bunch of bbs. Really though with this I barely have to out any hop even with. 43

  • 5
    H arm

    Posted by John Mac on 4th Apr 2021

    A1 bit ok kit

  • 4

    Posted by Konstantinos on 4th Apr 2021

    Used in ssx303. Results are amazing but a little bit better than original hop arm

  • 5
    H arm

    Posted by Richard Broadfield on 30th Mar 2021

    Exactly what I needed to upgrade my mk23 came super quick and a top quality product

  • 5
    Great improvement for consistent hop

    Posted by DCB on 22nd Mar 2021

    Great improvement for consistent hop

  • 5
    MK23 NBB H-Arm

    Posted by Duff on 19th Feb 2021

    A MUST for MK23 owners everywhere, coupled with the MK23 SOCOM TDC SINGLE.

  • 5
    Great improvement for consistent hop

    Posted by DCB on 8th Feb 2021

    Improved consistency of my hop performance

  • 5
    Hadron h arm

    Posted by Kelvin on 9th Jan 2021

    Massively improved the performance of ssx23 definitely would recommend to anybody