Yea, it’s 5.56. When they finally come out w/ the caliber conversion kits I’ll prolly pick up a 6.8 kit (if not oo expensive) since I have an AR that shoots that as well.
The thing I enjoy is that with both the SCAR and the ACR (moreso the ACR), there isn’t a huge aftermarket for them, so I won’t be blowing money on upgrades and what not. Geissele makes a 2-stage trigger for both of the guns, but the SCAR version is effing $400. The ACR is only $260, which isn’t bad. I haven’t even shot it yet so who knows what I’ll think of the trigger. Plus I think I’d prefer sticking with a single-stage trigger for the time being.