Primary Arms

MDM – Knight’s Armament Company

Knight’s had their entry for the US Army Forward Rail Accessory Kit (FRAK) program. KAC is one of three finalists along with PPI and Adams Arms. The URX IBN rail essentially becomes the barrel nut and comes with a set of shims that can be reused.

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Technically, it can be installed by a unit Armorer but in the Army armorers no longer remove barrel nuts so it has to be done at Depot level. It features a removable lower rail that is removed via a detent that can be depressed with a cartridge tip. Then, you can replace the lower rail with an M203/320/26 equipped either with the GI mounting hardware or KAC’s free float versions.

Additionally, you can mount an MRE rail but that is not currently part of the FRAK program. Hopefully, we’ll see that as an ECP or P3I initiative.

www.knightarmco.com

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8 Responses to “MDM – Knight’s Armament Company”

  1. hodge175 says:

    Does this free float the barrel at all? I like the idea of the longer MRE rail on a carbine.

  2. Jon C says:

    Its been about 8 years since I messed with it, but that looks pretty similar kn the exterior to their RIS II submission.

  3. Raul says:

    Like everything else that comes out of KAC, a well thought out design.

  4. USAF_catm says:

    One of the best parts about being USAF CATM, we can work on weapons way more in depth then other branches. If we can fix it, then its done for.

  5. Erik says:

    I think you mean the barrel nut needs to be removed at the Direct Support level.

  6. Alex says:

    So is the MRE rail portion is only supported by detents?

    Does this allow the MRE portion to hold zero (such as mounting PEQ-15)?