Colt M4a1 lower with le serial number. The other side has trust engraving which will have to be filled in and cerakoted. It is a deregistered sbr lower. It has a Spikes Tactical T2 tungsten powder buffer, I believe it’s a Knights Armament safety selector, AGL ACT trigger, QD endplate and rest is original mil spec Colt. These specific lowers have been around $1,000 stripped. I’m asking $700 cash OBO or PayPal for the complete lower. Possible trades for Glock 9mm Gen5 19, 17, 26 or 43’s. 9mm or 223/555 ammo. Thanks. See my other listings.