Z-Parts MK16 M LOK 13.5 inch Rail Handguard for GHK M4 GBB (w/ Barrel Nut)

Z-Parts MK16 M LOK 13.5 inch Rail Handguard for GHK M4 GBB (w/ Barrel Nut) Metal Construction M LOK System Handguard 20mm Picatinny Rail on Top Come With Barrel Nut Suitable For GHK M4 Series Gas Blow Back GBB Rifle Airsoft Guns Length: 360mm