This is an improved hop-up arm design optimised for SSX23 (it also works just fine on TM MK23) when using TDC hopup system. It's made out of solid CNC-machined aluminium and is known to increase the consistency of the SSX23 hopup chamber due to having no flex and a larger concave contact area.

The design is based on the well known H-Arm by Hadron Designs and improves in several key areas:

• it's made for a tighter fit for clone (non-TM) hop-up chamber so it's always perfectly aligned and centred
  
• nub contact surface to bucking has increased by 33% to allow bucking to apply hop more evenly
• nub height has been increased by 50% to make sure that only the nub touches the bucking and the plate doesn't start deforming the rest of the bucking near the nozzle
• nub is better aligned to the SSX23 / MK23 barrel hopup window
• start of the nub is rounded to gradually apply pressure to improve hop consistency
  

 Compatibility

This CNC Hop arm will fully work with all these models:

• SSX23 and SSX23 v2020
• SSX303 (requires Mini Thumbscrew or shortening of original thumbscrew)
• Tokyo Marui MK23
• All clone MK23's like ASG, STTi, etc.