Machined form aluminum billet, this stripped flattop upper fits DPMS pattern lower receivers and its the ideal companion for TM's machined .308 lower. Accepts standard DPMS ejection port cover and other parts. Interior is Teflon coated for enhanced resistance to wear and corrosion. Picatinny top rail with T-marks helps make sight, optics, and accessory mounting quick and repeatable. Features built-in shell deflector and includes front and rear .275" takedown pins.