MATRIX - Regular Pitch Airsoft AEG Upgrade Spring deans connector ~150 shots per cartridge is

~150 shots per cartridge is possible even at 2+Joules

Perfect for replacing or upgrading the stock brass cores in your gas pistol magazines

300% (M150) ~480~600 F

Top wired with mini Tamiya connector

Size:  fits up to 42” waist

MATRIX - Regular Pitch Airsoft AEG Upgrade Spring deans connector ~150 shots per cartridge isThese 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