16” Aero upper with Magpul fore grip. Lower is an 80% with milspec or better parts. Odin works ambi safety, Geiselle SSA trigger Magpul grip and BCM stock. Holosun red dot with 3x magnifier. Put it together about a year ago and put roughly 60 rounds 223/556 through it. Kept it under the back seat of my truck but recently sold my truck. $700 firm, private sale. Will meet on the south east side.