Guns Modify Light Weight GBB Outer Barrel Adapter for WA to Marui reg_MS Both models have 2 materials

Both models have 2 materials as option:

Each package comes with two bucking that work with the Echo 1 M 28 & VSR-10 style rifles

This AEG-cut bucking will NOT fit GBB hop chambers

GHK Navy Seal M4 RIS 14

160 Rounds of loading capacity are enough for most competition & skirmish airsoft game

Guns Modify Light Weight GBB Outer Barrel Adapter for WA to Marui reg_MS Both models have 2 materialsGuns Modify Light Weight GBB Outer Barrel Adapter for WA to Marui Metal Construction Design for WA M4 converting it to a Marui M4 GBBR system opening up a vast selection of custom parts Suitable For Toyko Marui M4 Series Airsoft Gas Blow Back GBB Rifle