


“All current Magpul items featuring the MOE slot system will be systematically converted to the M-LOK standard during 2014. “The first of these will be the new MOE SL shown at the 2014 NRA Annual Meeting and Exhibits April 25-27. “M-LOK will immediately replace MOE slots on all new products introduced by Magpul Industries,” explains Magpul in their announcement (.pdf). Magpul will begin to phase out the old standard immediately. Users who want to adopt the new standard will have to replace existing handguards or modify them. The main downside of M-Lok is that M-Lok accessories will not work with existing MOE handguards. Part of the reason Magpul developed the M-Lok system is that KeyMod is hard to implement when working with polymer handguards, which is their specialty. Another advantage of the M-Lok system is that it’s a little simpler and less expensive to manufacture. The benefits of using a licensed standard is that Magpul can ensure that products bearing the M-Lok brand are up to Magpul’s quality code. While both are free, the M-Lok system is licensed while KeyMod is completely open-source, which means that manufacturers are not only able to use it for free, they can modify and adapt the system for their purposes for some companies that may mean the difference between supporting one standard or the other. Philosophically the two standards differ. Magpul has a lot of clout in the industry but KeyMod has a head start and a solid foothold and won’t be going anywhere soon. While some might argue that the M-Lok standard is in direct competition with KeyMod, it’s likely that as time goes by it will simply be looked on as an alternative. M-Lok will replace MOE and make things official. Magpul never officially released a MOE standard even though a handful of manufacturers make MOE-compatible accessories and mounts. While M-Lok accessories will not be compatible with the older MOE handguards, MOE accessories can be used with M-Lok handguards with a small adapter. The new standard will replace existing MOE modular accessories. M-Lok will let users quickly and solidly mount Picatinny rail segments for use with Picatinny accessories as well as directly mount M-Lok-specific accessories like lights and foregrips.Īlthough technically very different, the system is functionally similar to Vltor’s open-source KeyMod standard, which has been widely-adopted by manufacturers of tactical accessories. M-Lock is allows users to directly attach accessories to their guns without having to remove parts to mount them from behind, without trading off stability in favor of ease-of-use. Magpul is releasing a free to use modular accessory mounting standard called M-Lok.
