High Durability Cylinder is the Premier Cylinder Set HD
If you want higher power,we recommend this Cylinder.

B↑ Taper Cylinder Head
Made of SUS303. The nozzle is longer than normal and has tapered line backside. They make stable output.
To keep airtight, this nozzle has O-ring.
This item can be attached with Normal cylinder, but Normal cylinder has low-thread and it cannot fix tightly.
We cannot tell whether they can attach or not, so we don't recommend attachment with Normal Cylinder.

B↑Hard Piston : you'll get High durability
This piston has NO VC,so it's a simple piston but the simple is superior to durability.
The body: Made of Duralmin.
The Ring: Made of Derlin.
The End: Made og Stainless.

※If use this piston to extreme power spring as PDI SS,SPR & over 2J setting,it's possible to be shorter life.
Because those sprigns gives extreme power over Toy. It's up to your operation & maintenance.

We use the most suitable material for each parts, so this piston has high durability.
Hard Piston can make more velocity than Vacuum Piston because of its hight airtight.

B↑Spring Guide
Made of Stainless steel and Polished,so it makes smooth action.
It has a thrust ring that made of derlin.
This spring guideis the best for B↑HD Piston. The shuft is longer than Spring Guide for VC Piston.
Please use with fat Dia.Spring.