KSC/KWA airsoft Vz61 drop in tactical package

Disclaimer:
This is intended for airsoft purpose only. Do not use it on any sort of firearms.
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Description:
Tactical Package contains:
Top Rail
Front Rail
Charging paddle
Bolt carrier guide

Tested on KWA Vz61
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Extra material required:
2x M3 set screw

Extra modification required:
Drill two 2.5mm hole on the front rail, install set scews in those holes to keep the rail in place
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Extra tools required:
1x hand drill / power drill
1x 2.5mm drill bit