Here was (traded it to a buddy at Team 3) my Armalite AR10. I had bought the Eagle Arms lower first, then the 18" Krieger barrelled upper next. Unfortunately I didn't know the barrel was originally longer, and the guy never adjusted the gas port accordingly. I had David Sams (former gunsmith for the Army Marksmanship Unit) tune it for me and it worked beautifully for me after. The Nightforce NXS 5.5-22x50 was originally for a .300WinMag, but I had no place else to put her. Surefire muzzle brake, KAC BUIS, Matt Burkett offset Docter mount, AR Gold trigger, PRI 15" fore end, Harris bipod, UBR stock, and I forget the mfg for the grip. I hope to replace her soon.