Guns Modify EVO Drop In Full Metal Lower Parts STD Trigger Set For GM Tokyo Marui M4 Series MWS GBB Rifles AirsoftGuns Modify EVO Drop In Full Metal Lower Parts STD Trigger Set For GM Tokyo Marui M4 Series MWS GBB Rifles Made out of Zinc Alloy. Comes with Complete Trigger Box Set , Magazine Release Catch , Selector , Blowback Plate , Sear , Pin , Spring and Firing Pin. Suitable for GM Tokyo Marui M4 Series MWS GBB Rifles. Color Black Weight Approx 257g Original Packing