>>64129834
Update on this post. Bear witness! To a plate that is MODERATELY better than the LTC 28570 but is even more difficult to acquire.
The Tyr Tactical, formerly Diamondback Tactical, XHA4/S6/T WTFBBQ.
https://www.tyrtactical.com/shop/tyr-tactical-xha4-s6-t-level-4-ballistic-plate/

It is rated to defeat 2x 7.62x39 BZ API or 1x 7.62x54R B-32 API standalone, just like the LTC 28570, but...
1. It is also advertised to meet NIJ Level III standalone, so 6x 7.62x51mm M80.
2. When backed by competent IIIA soft armor it defeats M2AP, Level IV threat. LTC 28595 / 28570 get cleared by M2AP pretty consistently so this is a nice boost.
Weight is 4.5lb SAPI medium, 0.75" thick, so it's 0.05lb lighter than the LTC 28570. Price is $3,000 a set but needs credentials because Tyr is lame and doesn't sell to normal people.