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

13 Reviews Hide Reviews Show Reviews

  • 5
    Is perfect

    Posted by Dragne Daniel on 31st Oct 2020

    i do not have any comment. it's the best H-Arm.

  • 5
    H-arm MK23

    Posted by Neil Adcock on 5th Oct 2020

    So good ... Bought 3 of them, and did all 3 of my MK23s - wouldn't hesitate to buy any Hadron stuff ...

  • 5
    designs h-arm

    Posted by Unknown on 7th Sep 2020

    Great design giving fantastic results when combined with the 3 screw logic plate

  • 5

    Posted by filipe simoes on 8th Jun 2020

    One of the best upgrades for the mk23 using the Hadron Designs TDc Unit