40x53mm HEAB is available OTS, ask ST Kinetics in Singapore. It's also being developed for U.S. Mk.19 and Mk.47 afaik.
I doubt the value of HEAB against ATGM teams, though. It's desirable to hit before the ATGM hits, and that is likely not possible if careful lasing is required. A disruption of physically ineffective near misses with HE is likely more useful than a late HEAB hit.
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