WII TECH MP9 ( KSC System 7 ) 130% Enhanced Recoil Spring For KSC MP9 SMG GBB
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This 130% enhanced recoil spring is made of Piano Steel wire.
This enhanced spring ensures:
increase the recoil speed;
improves the smoothness of loading BB;
Improves air-tightness between loading nozzle and hop-up bucking.
- Verkäufer WII TECH
- SKU WII-4138
Disclaimer: Upgrading airsoft guns require necessary skill & technique, manual modification is necessary, consult expertise if needed.
