First adoption of M-Lok by the U.S. Military

    Soldier Systems Daily is reporting from Modern Day Marine that the U.S. Army’s Compact Semi-Automatic Sniper System (CSASS) will be getting an upgrade from H&K in the form of Geissele rail systems, in particular it appears to be their Super Modular HK Rail that retails for $430. The rails are confirmed, but unconfirmed posts state that the barrel twist will become tighter with a 1/8 twist, and a change from the H&K 2 Stage trigger to a Geissele trigger.

    But most importantly, this appears to be the first time a legitimate and public U.S. Military contract has an M-Lok system incorporated into it. Keymod has been available with the PSR contract rifles in addition to numerous other small arms in use by Special Operations forces. But M-Lok hasn’t yet made it in the world of standardized government contracts, almost a holy grail of accomplishment within the firearms manufacturers community. Early on TFB we reported that M-Lok was outselling Keymod with a three to one ratio, in addition to Colt Canada even coming out with M-Lok options on their handguards as well. Could this adoption be the beginning of a trend that turns the tide against Keymod? Granted, it is a relatively small contract insofar as truly successful military contracts go. But seeing how the industry sometimes takes a very leading cue from the military services that sometimes drive it, this could be an early indicator.


    Infantry Marine, based in the Midwest. Specifically interested in small arms history, development, and usage within the MENA region and Central Asia. To that end, I run Silah Report, a website dedicated to analyzing small arms history and news out of MENA and Central Asia.

    Please feel free to get in touch with me about something I can add to a post, an error I’ve made, or if you just want to talk guns. I can be reached at [email protected]