Durable and light upgrade set for CYMA CM.703 and CM.707. Package include all what is needed for basic upgrade.

Hybrid Piston

• The piston is made by CNC machining from light, but durable aluminum alloy 6061-T6 (Dural) 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 has an back-pressure system with O-ring (O-ring expands and seals better when shotting).
• The enlarged inner piston diameter allows you (and we recommend) to insert a stronger 9mm spring upgrade.
• Dimensions: lenght - 76,8mm, outer diameter - 21,8mm, inner diameter - 13,5mm
• Weight: 28g

Spring guide

• Allows the use of classic 7mm springs and stronger 9mm spring springs.
• Axial bearing makes pull back much smoother, because of limited spring rotation.
• The spring guide is made of stainless steel with a perfectly smooth surface.

Spring

• High-quality spring made of spring wire with heat treatment and grinded ends.
• Chemically blackened against corrosion.
• The outer diameter of the spring is about 12.8mm.
• Springs are offered in range from M140 to M160. You can simply select it before add into shopping cart.

APPLICATION:

Set is dedicated for CM.703 and CM.707, but you have to use OUR CNC trigger mechanism.