I started getting curious the last few days about two rifles made by Robinson Arms. First the XCR. From what I've read it was designed to go against the FN SCAR in competition for the military contract but lost. The second is the M96. Sort of a modernized Stoner 63 I guess.

My question is, does anyone on here have any experience with either of these rifles and if so how do they compare to say an AR, the SCAR or even a Sig556?