Chris from SMOS writes …

This is the SM15 from Stubborn Mule Outdoor Supply. This is a straightforward AR 15 built to last. V7 extreme environment gas tube, full auto carrier properly staked. Magpul furniture. 1:8 16 inch chrome lined barrel with AAC non mount FH. Receivers and rail are 100% made in house by free Americans. The rifle is cerakoted in coyote tan.

That’s a very nice looking rifle (and a beautiful photo).