● MK-AH30 Atushi Hara Silicone O ring 30 deg. (for shock)
● MK-AH40 Atushi Hara Silicone O ring 40 deg. (for shock)
● MK-AH50 Atushi Hara Silicone O ring 50 deg. (for shock)
● Features
Developed by Ifmar world champion Atushi Hara.
This O-ring is made with special silicon that increases smooth action of shock. and prevent expansion of the o-ring.
Available in 3 type of hardness