Matrix M120 190% Irregular Pitch AEG Upgrade Spring (360-450FPS) Airsoft Parts Lower drink tube exit ports

Lower drink tube exit ports for underarm tube routing

16rd BB Capacity

increasing your stability and comfort

18 round BB capacity

Matrix M120 190% Irregular Pitch AEG Upgrade Spring (360-450FPS) Airsoft Parts Lower drink tube exit portsThese Matrix springs are build after careful study of major Japanese spring sets providing all the features you'll look for in an AEG spring for maximum performance. It is made out of high quality anodized piano wire, with tension carefully measured. Systema's irregular pitch, Prometheus's Stainless steel material and PDI's durability are all features duplicated and found in a Matrix spring. Test shown that this spring will last you longer, is more