CELCIUS - Rapid Main Spring (CS300)


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CELCIUS Rapid Main Spring (CS300) 

Steel Construction 
Supreme Quality Airsoft Electric Gun Spring 
You will get a stable muzzle velocity when install this spring 
Design for Upgrade your AEG Rifle to increase Muzzle Velocity Power 
Compatible with M4, M4 CQB, M16A2, M16A3 Training Weapon 

Muzzle Velocity with 0,2g BB : 300-340 FPS 

Product Size: Length 164mm / Diameter 12.17mm