This Builder Set features an M4E1 set with an Ammo Can Cerakote finish. This package deal includes the finished pieces you need to assemble your own Aero Ammo Can M4E1 Rifle, including an M4E1 Enhanced Upper Receiver, AR15 Gen 2 Lower Receiver, Gen 2 Enhanced Handguard of choice and Billet Trigger Guard all finished in custom Aero Dazzle Cerakote. Stand out at the range with a unique and eye catching build. This is a one time offer for this finish - once they are gone, they are gone!