Z-Parts MK16 M LOK Rail for Marui M4 MWS GBB Rifle (w/ Barrel Nut, 360mm)

Z-Parts MK16 M LOK Rail for Marui M4 MWS GBB Rifle (w/ Barrel Nut, 360mm) Metal Construction 13.5" M LOK System Handguard Able to Transform Your M4 Rifle to URGI Style Rifle Suitable For Tokyo Marui M4 MWS Series Airsoft Gas Blow Back GBB Rifle Length: 360mm