Just finished up my AR.

Sabre Defense upper in .204 Ruger w/ 24" Bull Barrel (purchased here on PM)
Burris PEPR mount
Nikon Prostaff 7 4-16x50 (30mm tube)
New Frontier Polymer Lower
RRA Varmint Trigger Kit
Magpul MOE grip
Magpul UBR stock

Haven't decided if I want to do anything else to it or just leave it as it is.