ARES M4 CQB with Metal Rail Nylon Fiber+ Al.Alloy Version - DE

SHS Polymer Lightweight 14 Teeth Piston features:
 

• Essential part for upgrading your Airsoft AEG
• Dupont Polymer Lightweight Construction
• SHS Piston is the lightweight piston with high impact-durability
• 14 Teeth Design for Regular Straight Gear Set
• Compatible with all AEG
• Suitable for mainstream high-speed tune-up and has excellent operational characteristics
• The Grease grooves cut on the rail-guides keep it lubricated
• Reinforced piston provide extra duration during rapid & prolonged firing