For Cowcow Tech B01 Dynamic Blowback Housing (and Hi-Capa compatible)
3 different sizes:
9.5mm*2mm, 9mm*1.9mm & 9mm*2mm (inside diameter * cross-section).
These O-Rings are anti-oil and reduce the fiction during cycling.
*PS: Please note: installing parts / assemble /fitting airsoft gun will need intermediate knowledge; for expert or airsoft gunsmith. Please refer to your airsoft gunsmith for proper installation/fitting.
3 different sizes:
9.5mm*2mm, 9mm*1.9mm & 9mm*2mm (inside diameter * cross-section).
These O-Rings are anti-oil and reduce the fiction during cycling.
*PS: Please note: installing parts / assemble /fitting airsoft gun will need intermediate knowledge; for expert or airsoft gunsmith. Please refer to your airsoft gunsmith for proper installation/fitting.