MATRIX Irregular Pitch Airsoft AEG Upgrade Spring Bulk Bag - Bag of 50 (Power: M90 280~340 FPS)

Features

• Irregular pitch coils, variable tension reduces stress and gearbox wear and tear
• Heavy duty stainless spring steel construction, provides lasting tension
• Compatible with all AEG gearboxes
• Bulk bag is ideal for techs and shops

These 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 durable and will out perform!