This is an improved hopup arm design optimized 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 consistency of the SSX23 hopup chamber due to having no flex and larger concave contact area.

The design improves several key areas:

• it's made for a tighter fit for clone (non-TM) hopup chamber so it's always perfectly aligned and centered
• 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 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.