Matrix Regular Pitch Airsoft AEG Upgrade Spring M120 HPA ■ Compatible Models:

■ Compatible Models:

9" M-LOK handguard

Entering service in the early 2000's

Lens protector sits on a 30 degree angle

Matrix Regular Pitch Airsoft AEG Upgrade Spring M120 HPA ■ Compatible Models: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