16"Upper has had +/-1000 rounds, shoot fine, F mark pinned front sight, government profile barrel, 1-9 twist, Magpul flip up rear and handguard, piccittiny rail pieces not show go with it also. No BCG or charge handle.
300 black out 16" barrel, with gas block/tube, flash hider and crush washer, maybe 100 rounds through it, 1-8 twist.
$225 for both or trade for low time 223 wylde 16-18" Hbar barrel in 1-8 or 1-7 depending on barrel. South side of Houston or can ship.