RA-TECH 7075-T6 Forged Receiver URGI / MK16 SD-556 for MARUI MWS GBB

*RA-TECH 7075-T6 Forged Receiver​
*RA-TECH including Steel Receiver Pins
*RA-TECH 6061-T6 Aluminum extrusion receiver extension / buffer tube
*RA-TECH AR / M4 GBB BUFFER TUBE SPACER
*RA-TECH Steel Buttstock Fixing Ring
*RA-TECH Steel Eceiver End Plate

The screw of receiver grip is M6. If want to use original grip, the screw hole has to be enlarged, however which might cause the result of gap between the grip and the receiver. We suggest use of general gbb spec grip.