Upgrade set for VSR /CM.700/CM.708 AirsoftPro designed to be more lightweight than the previous version.
It is made of 3 types of materials: lightweight aluminum body, two POM rings for better sliding in the cylinder and a stainless steel catch back end part .
Features:
Made of 6061-T6 aluminum alloy at CNC machines (durable but also lightweight) with a high-quality anodized finish.
The piston catch is made of stainless steel.
The piston has two sliding polyacetal (POM) rings.
The piston head is provided with a back-pressure system with O-ring (which expands and seals better when shooting).
Enlarged inner piston diameter allows the use of powerful 9 mm springs.

Dimensions:
Length: 105mm
Outside diameter: 21.8mm
Inner Diameter: 13.5mm
Weight: 30 g

Spring guide 7 / 9mm with bearing.
Made of stainless steel and smooth finished.
Axial bearing makes pull back much smoother, because of limited spring rotation.
Allows the use of springs with a diameter of 7 mm (standard) and 9 mm (upgrade).

Spring
Made of quality heat treated spring wire, chemically blackened to resist corrosion.
The outer diameter is 12.8mm.
The package includes M160 spring

Compatibility:
- sniper rifle CM.700 and CM.708
- sniper rifle Tokyo Marui VSR-10, but only with trigger in 90 degrees
It is NOT compatible with the stock trigger set because it is made in 45 ° degrees.