Silencerco appears to be developing a fixed barrel, non NFA version of their Maxim9 without the intergral suppressor of the original.
While the emphasis in the article appears to be on suppressor issues, what I find more interesting is the MRDS amounted forward on the fixed barrel. This is one answer to the longevity issues the G forces of a reciprocating slide induce in MRDS.
http://soldiersystems.net/2019/07/17...edium=facebook