The Lower Parts Kit includes Magpul MOE Stock (Mil-Spec)- a drop-in buttstock by Magpul. Pistol Grip- drop-upgraded pistol grip by Magpul for anti-slip and ergonomics. Trigger Guard- a drop-in replacement trigger guard. Enhanced polymer rear trigger guard. DPMS PPT Lower Parts Kit includes the standard necessities to finish your DPMS stripped lower. Mil-Spec Buffer Tube- diameter 6-position buffer tube assembly.