Finished up new upper build. 12" ARP barrel, NorthTech billeted receiver with Ti forward assist, SLR hand guard, SLR adjustable gas block, ARP melonite BC and super bolt. Groups amazing. The glass is a 4x ACOG for 6.8 with an Armasight Apollo 640 Pro 50mm. Lower is a Mega billet with a SSA-E trigger.