Description

CNC 7075 Receiver

6061-T6 CNC M-LOK Rail

Use MIL-SPEC thread stock tube

For Marui MWS M4 GBB Airsoft 

**All aftermarket upgrade parts require necessary skill or modification to install and assemble.
 Please refer to your airsoft gunsmith for proper installation / fitting if needed. Fitting  needed as the condition of each airsoft gun might be different. The actual performance is based on the overall setting on your airsoft gun. Please consult your airsoft gunsmith for advising.**

**No return /refund for any installion /fitting problem **