WII TECH M870 ( T.Marui ) Receiver Springs For TM M870
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$60.00
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This 150% spring is used to increase the force of the hammer to hit the valve pin.
For Tokyo Marui M870 Airsoft
These enhanced springs improve the sensitivity of mechanism on the receiver.
- Vendor WII TECH
- SKU WII-4050
Disclaimer: Upgrading airsoft guns require necessary skill & technique, manual modification is necessary, consult expertise if needed.