ICS / Classic Army gear box spring set for M4 / M16 / MP5 Series Airsoft AEG
Reinforced Spring Set.
Useful springs that tends to get lost or damaged during an upgrade.
The spring tensions are modified in some extent to function better to serve the each purpose.
-This kit have the trigger spring which the systema spring kit don't have.
-Kit includes :
-switch return spring
-Tappet plate spring
-Reversal latch spring