AEG Rifle Custom Parts | Internal GearBox Parts
High Performanced HOP-UP For M16/M4 AEG  

 

If you want to install MARUI Original Lower-Receiver, It needs remodle.

The HOP-UP Fits for MARUI/GUARDER HOP-UP Gear Parts (GE-07-24)

Material: Aluminum Alloy
Item No.: GE-07-22
Suggested Retail Price: USD 12.00