Daniel defense m4a1. I built it for home defense only shot it to zero the eotech. So at most 200 rounds have been through it. Comes with all of the following. Geissele trigger, Odin works extended Mag Release, Daniel defense grip and rip charging handle, B5 systems sopmod stock, radian safety selector, eotech exps3, eotech magnifier, surefire m600 df with pressure pad, spare bcg, stock has spare parts such as gas rings, firing pin, Panasonic batteries for eotech, magpul sling and blue force gear sling. 1 dd mag, 500 rounds of federal 5.56 55 grain. Pelican case and original cases for the eotech and magnifier. No trades.