AERO M5 upper, AERO R1 MLOK free float handguard, SLR adjustable gas block, Ballistic Advantage heavy 18" barrel, 1/10 twist, threaded, charging handle, no BCG. Excellent condition. About 250-275 rounds through the barrel. Shot 168SMK's nicely. I went all in and had Craddock Precision build me one of their heavy Bartlein SS 5R barrels (8 months) and another upper. Sell for $350.00.
