Current tests.

1) L-3 AR500 Wt. 21.84Lbs - Stops (22) 7.62X39mm Classified as decent but Heavy
2) L-3A AR500 Wt. 15.4Lbs - Stops (17) 7.62X39mm Classified as 7.62X51MM protection ***** BEST VALUE!!!
3) L-3 SAPI Wt. 12.1Lbs - Stops (6) 7.62X39mm Classified pistol protection
4) L-4 ESAPI Wt. 15.6Lbs - Stops (8) 7.62X39mm Classified Mid range protection
5) L-4 AR500 Wt. 33.6Lbs - Stops (25) 7.62X39mm Classified as decent but Heavy
6) L-5 XSAPI Wt. 18.2Lbs - Stops (9) 7.62X39mm Classified .338 Lapua Magnum stopper - It did stop (4) M107 Rounds from RHS MOD, but only 1 from Mounted M2HB
7) L-7 SARVIP Wt. 29.4Lbs - Stops (15) 7.62X39mm Classified .50BMG and 12.7X99mm Stopper only stopped 1-2 Rounds from both mounted and sniper variant.

This was tested with an RHS AKM, using 30rnd AKM (Bakelite) 57-N-231
RHS M107 and the RHS M2HB (M3 AA)

I don't know if some of the vests are stopping the rounds as described and seem rather heavy. Especially the L-3 AR500 for the amount of protection it supplies compared to the other plates.