SIG Stock Adapter for AK-47 Rifles by Aeroknox

    Aeroknox released on their Facebook page some images of a new product which is still in development and isn’t yet available on their website. They are developing a rear trunnion for AK-47 type rifles, which provides a Picatinny rail section as shown in the picture below. That feature allows attaching SIG MPX/MCX stocks to AK rifles.

    Images by Aeroknox

    The new rear trunnion prototype is machined out of a solid block of aluminum. In order to install it, you need to remove the existing rear trunnion rivets, uninstall it, then install the Aeroknox trunnion and fix it in place with new rivets. As you can see, it is not a drop-in accessory. You either need to have proper tools and skills to install the rivets or take it to a gunsmith to do the job. You know, one of the most (if not the most) important portions of building AK rifles is to properly install the rivets.

    Aeroknox LLC has been involved in the development of the 5.56 Microgun (a hand-held 5.56 caliber version of Minigun). Obviously, that kind of guns are rather marketing projects to attract attention to a startup company. However, Aeroknox has some interesting (and useful) products already developed, which at least look great. Some of them like the hand stop and the AK grip are shown on the pictures. You can see more on their website.

    Hopefully, we’ll see this stock adapter made available for purchase soon.

    Hrachya H

    Managing Editor

    Being a lifelong firearms enthusiast, Hrachya always enjoys studying the history and design of guns and ammunition. He also writes for and
    Should you need to contact him, feel free to shoot him a message at [email protected]