Comes with a metal MUR type upper frame and lower frame with Skull Frog Laser Marking
Allow user to convert their WA System M4 GBB into Skull Frog Style.
Suitable for WA M4 / G&P WOC M4 / WA System M4 GBB Series.

Package includes:
1 X Aluminum CNC Receiver
1 X WA type Magazine Catch Set
1 X Front & Rear Knob Pin
1 X Steel Dust Cover Set
1 X Steel Stock Ring
1 X Bolt Release Spring

Weigth with box (gram): 800