This piston head feature:

– Viton Oring with a ventilated design.

– No airbrake, short, medium & long airbrake options (for 4.60 mm internal nozzle – for TAC-41 GBB cylinder head only).

– POM piston ring

– NBR 80° Oring damper

– Stainless s

CNC AL 6061 T6 bolt knob with hard black anodized finish.

M8x1.25 thread.

58 Grams

Ref: SBA-BKB-02