New hi quality light weight CNC aluminum model for m16/m4 free floating metal handguard no need front plug or sight to be used M-LOK slots on the side fixing screws and barrel nut give body/rail strenght and durable suggested installation with full metal body m4 electric rifles ideal with 7 inches and up outer barrel length Fits Marui, VFC, G&G, KA, Dytac and compatible electric rifles