Gonna guess Barrett's or the like. Some configurations of an M82A1 are $10k before optics.
Somewhat skeptical. $12-14k is more like custom shotgun or safari rifle territory. A Barrett only gets that high because the optics to use it well cost $3-4k on up. The only Barrett that gets close to $10k is the M82 in .416 Barrett. And that's more because they lack the economy of scale that the .50BMG models have.
And no point in adding items that aren't controlled by the FFL process. Even if high end glass is covered under ITAR.
We really need pics or makes/models here. That the MSM is leaving therm off could be because it hasn't been made available by the authorities yet. However, I think we can all see them leaving that off intentionally because a Perazzi or a .416 Rigby double rifle does not "fit the narrative".
Still just as illegal, but some rich Mexican guy trying to bypass his country's laws for high end sporting guns that would never be used in crime even if he is a cartel kingpin, just doesn't have the same impact.