I think Sully and I are the only ones with these things, but they're pretty sweet. I finally got to shoot mine a bunch, and it is smooth. Flipping the gas block over to suppressed mode keeps the rifle feeling almost identical when I throw my Saker on. A couple guys at the range today are very interested in the MCX for 3 gun, and it's easy to see why.

Should we trust Sig? After the botched 556, I wouldn't. Heck, I think they are generating a lot of hate right now with the gen 2 MPX changes that aren't backwards compatible with the original guns. I'm surprised at how much I like the MCX, so hopefully Sig can get their act together and support it. All the proposed short barrels in several calibers, alternate handguards and stocks, and caliber conversions are still vaporware.