left to right
rem. 76/15 9 twist chambered 5.56
J&T distributing expedition 20" upper, 9 twist chambered 5.56
RRA 24" varminter chambered 223 wylde, 8 twist
Tromix TR15 custom 20" chambered 458 socom
D'tech 22" oly fluted SUM chambered in 25 WSSM
yeah I like them, my only complaint is the aluminum will suck the heat out of your fingers on cold mornings
RR