SHS - Upgrade Spring M120 (360~450fps) - TH1014

Features:

Upgrade your AEG's fps to 360~450fps.  It is highly recommended to upgrade plastic bushing and spring guide to metal bushings and spring guide with this product.  Also, it is recommended to upgrade plastic pistons to polycarbonate piston; plastic piston heads to duracon piston heads; and standard gear to reinforced steel gears.

Specification:

• Material: Piano wire
• Gross weight: 20g
  
• Color: Silver
• Qty: 1pc M120