PRODUCT CODE:645487
For Sun Pro M40XB.
This set has Precision cylinder,Taper cylinder head,and Vacuum piston.
We recommend PDI cylinder set to standardize inner items.
You can get the best fitting with this set.
| Sun Pro M40XB has 2 types nozzle. This set has the taper cylinder head that has about 28mm length nozzle. (The other has 20mm nozzle.) There is no compatible between 2 types. Please note about that. |
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Made of SUS304.Thi s is high quality cylinder.Look like a Straw.cylinder but torelance of internal diameter is very accuracy.This cylinder will be next standard.
The welded points.
We welded the cylinder body and end boss by laser .
It can get the high durability to use for long time, and influence the smooth action of piston.
Taper Cylinder Head.
Made of Brass and all CCN machined.
Airflow is very smoothly cause machined "Taper".
This is long nozzle ver.
Vacuum Piston.
Made of Duralmin.
Vacuum system is to let fly at BB more farther and go straight.
This system erase the negative pressure when shooting.The system is inside the head.
1.Conventionally,the valve is free in the system.(This is not air sealing)
2.When shooting,the piston go ahead.At that time,The valve closed & start to keep air sealing.
3.As well as the piston bump against the cylinder head,the valve come off.
4.The air flows toward top from rear.This cancel the negative pressure.
This is for thickness diameter spring, so please use "Guide spacer" with normal spring guide.
We deem to get your agreement for the below policy when you place an order.