It's a Harris. I bought it directly from Harris more than 10 years ago.
I actually run Atlas bipods on everything but the goal for this rifle was something that could be put together for a reasonable cost and be a comfortable, accurate, solid shooter hence Harris vs Atlas, NF SHV vs ATACR or some other higher-level glass, mid-level mini-chassis vs full on skeletonized chassis, etc. The barreled action is from a Rem 700 SPS Tactical I bought used years ago. I had SAC do a bolt knob conversion when I originally bought it and had a Timney trigger in it, but I replaced that with a Geissele Rem 700 trigger. The only thing purchased new was the Cadex Strike Nuke and the AccurateMag mags (and the Harris). Everything else is second hand.
It shoots 1/2 moa with IMI 77gr razorcore and Black Hills 77gr OTM. I'm going to try some Southwest 77gr SMK and I think I have some Nosler match around somewhere. I don't reload, but I bet it would be phenominal where some tuned ammo.