About a year in the making, finally got out to shoot my 6 ARC build this past Monday. Only ran 40 rds of factory Hornady 108 ELDM through it, but it performed flawlessly and looks to be a keeper. Groups are about 25 rds in and after being cleaned.
Upper
Aero Precision M4E1 upper squared by DTech
Shilen Match Grade 20", medium contour, rifle length gas, fluted, threaded. Built and headspaced to my Aero Precision bolt by DTech
SLR Ion Lite 13.7" Handguard
Aero Precision Gas block, low profile, .875", black nitride
BCM Ambi 3x3 Large Charge handle
Aero Precision Bolt Carrier Group
Seekins MXM 34mm scope mount
Burris XTRII 4-20x 50mm, 34mm tube
Lower
Aero Precision M4E1 Lower
Triggertech AR Adjustable
Aero Precision Enhance Carbine Buffer Tube with H2 Buffer and JP Spring
Ergo Tactical Grip
Luth-AR MBA-3 Carbine Stock
First round clean bore flier