Very nice mix of parts, shoots extremely well now (see paragraph at the bottom). Only about 3 magazines/90 rounds through it.
Lower receiver: Geissele ODG blem lower, SOLGW Blaster Guts lower parts kit, American Defense Manufacturing 8-position buffer tube, H1 buffer, ERGO rubberized fde grip, B5 Systems coyote brown Bravo stock (could switch to an identical black one if preferred), Forward Controls Design trigger guard, and BCM PNT trigger.
Upper receiver: BCM M4 upper receiver, Larue SAR 10" handguard, Criterion Core Series 13.9" chrome lined barrel (8" twist, 223 Wylde chamber) with pinned & welded Lantac Dragon ASR mount, Microbest chrome bolt carrier, BCM bolt, and Radian Raptor-SD fde charging handle.
Optics: I'm selling just the rifle, but if you really want the optics, they'll be an additional $900. It's a Sig Romeo 4T-PRO with an Aimpoint 3x-c magnifier on an ADM swivel mount.
$1,200 for the rifle without the optics, not really interested in trades at this time.
((Honest comment on the barrel. When I first shot it, it was extremely horrible, maybe 6 or 8 moa, which was unexpected from a very highly reputed barrel manufacturer. I sent it back to them, and their solution was to sell me a matched headspace BCM bolt for it. It now shoots any random bulk ammo at about 0.6-moa when used with the factory-headspaced bolt.))