>>64232410
They do, it's called going over to Highcom and buying a 4SAS4 for $99.99. Pic related plate from Linry is less than thirty dollars and technologically equivalent to a granit. Aluminum oxide tile array + PE backer.

Nowadays, ESAPIs weigh 5lb flat and stop 3x .30-06 M2AP @ 2,880ft/s or 3x 5.56x45mm M995 @ 3,400ft/s per current VTP specs. Know granits that can do that?
Granits rated only for 7.62x54R B-32 API, steel core, literally weigh more than XSAPIs that can stop 3x 7.62x51mm M993, tungsten carbide, at 3,050ft/s.