Anti Drone device uses rifle, but no ammunition

This odd contraption had a video released about it in October last year. It is a mechanical device that attaches to the picatinny rails of a firearm, that when aimed at a commercial drone, it sends out a radio pulse in that direction via a sort of electromagnetic wave, that is a signal that activates the out of range signals on many drones. When these signals are activated, the drone thinks it is out of range from the origin location or the control point. It is then programmed to do one of three tasks: Land, hover, or return to the point of origin. The video shows it landing in place, but I’m curious as to what models of drones this would affect. In addition to what sort of blocking mechanism could drone tweekers work into their devices to override this device. I also don’t quite understand how the company is using an AR receiver to mount this device on, and whether they intend to sell it like this. It might just be for the camera, to show how the system works. If anything, I think the system would be effective mounted on an actual shotgun of some sort, so if the drone doesn’t react to the system, then you could still blow it out of the sky if it is above your personal or business property, especially if loaded with birdshot. However the potential for this device in urban areas should be good, if it can be further proven. You also wouldn’t even need an AR upper and lower to use it, I assume a broom handle or similar tube would be just as sufficient.

I just took a look at the company’s page, which is the Battle Drone Defender, and it appears that they are offline because of current testing and evaluation. In the legal way of things perhaps.


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.

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  • Anonymous

    And yet no mention of the legalities of unlicensed radio broadcasting or broadcasting a signal designed to interfere with radio communication.

    • AnotherAnon

      Or the destruction of private property…

      • JK

        Hover, Land, or Return to point of origin. Regardless…
        Perhaps you should avoid operating your property over someone else’s property, unless you have permission to do so.

        • Patrick

          “Hover, Land, or Return to point of origin”…. or keep flying in a straight line and crash into whatever….

          For a radio controlled drone, this may work. I’m curious how it works for an autonomous drone that follows a set of pre-defined instructions?

          • LCON

            It would depend on the navigation system. If it’s course correcting based on GPS or similar systems it could be spoofed depending on how often it requires it’s position data.

          • AlDeLarge

            It depends on the settings. I can set mine to continue its program, return and hover, return and land, or land if it loses contact following a programmed flight..

        • The Brigadier

          I agree. Our rights to privacy are abrogated and everyone in here is worried about violating the rights of the drone invaders. When they invade my space above my house under 500 ft., they are violating the right of free passage of air traffic and violating my space and privacy. Boom!

    • Pedenzo

      The 2.4 and 5ghz spectrum drones operate in are license free…just like the 2.4 and 5ghz routers everyone has in their homes….now, causing intentional interference on any radio spectrum is a big ol’ felony just waiting to happen……

    • Sulaco

      The video seems to indicate the device is aimed at the cop market..

    • CountryBoy

      Most drone control radios include a paragraph from the FCC stating that the operator accepts interference from other sources without recourse. It is a means of avoiding having to license the radio transmitters.

      Of course, if this thing brought down a drone that was not harming anyone or anything and caused damage or injury, I can see where the operator of the “DroneDefender” as well as Battelle, might be held liable.

      The successful operation of this also requires that the target drone HAVE the modes of emergency handling in the first place. It only fools the drone into thinking it has lost the legitimate signal. If this was aimed at most R/C helicopters (as different than multi-rotor drones) the result would probably be the ‘copter dropping from the sky like a stone, again with the potential for liability.

  • Mister Thomas

    A radio antenna is not a rifle.

    • JK

      According to the ATF, a stripped receiver is a firearm. The item pictured appears to be a NBR (No Barreled Rifle). I don’t believe those require tax stamps.

      • Patrick

        The logical choice would be to use an 80% lower (or something similar).

        • I think the logical choice would be to buy an airsoft gun and you could do the same exact thing, in addition to perhaps pelloting the thing away from your property.

        • JK

          I was thinking along the same lines. The author mentions mounting it to a broomstick, I’m thinking more along the lines of an Airsoft AT4 or Stinger style missle launcher.

          • RICH

            How about just using a 12ga. and look at the ‘drone’ as a clay bird ! !

          • The Brigadier

            Yup and number 6 shot would bring those those birds down easily.

        • Sulaco

          Or a wooden stock with a rail attached…

      • Nick

        No tax stamp. It’s considered an “Other” since it is an incomplete firearm, but is the serialized portion. The “other” designation is used for all firearm frames or receivers if they are the serialized part. You must be 21 to buy one, but no NFA stamp.

  • JK

    Could be useful for LE. Remove the bit of the web address after “.org” will take you to the main sight, looks like the do a lot of business with municipalities and larger companies, maybe not so much with retail consumers.

  • USMC03Vet

    Suddenly drone speeding tickets…..

    No wonder they want people to register their drones.

  • Rick5555

    This device is not using “sort of electromagnetic.” When I read that, the scientist side of me was sparked. Due to electromagnetics can do a lot of harm to communication devices. Upon viewing the You Tube video. This device is using radio waves in a pulse pattern. Radio waves are nothing like electromagnetic waves or anything like microwaves. I mentioned microwaves. Due to the spectrum of wave lengths available out there. Like x-rays, gamma rays, etc.

    • Umm watt?

      While differnt wavelengths may behave differently, radio still falls within the electromagnetic spectrum along with the ones you mentioned and includes visible light.
      Judging by the construction and size of the antenna on the front this is intended to act as a jammer in the upper limits of the radio band (uhf and higher)by bringing about destructive interference of the control signal.

    • Aurek Besh

      Microwaves are a subset of radio waves, which themselves are a part of the electromagnetic spectrum. The device is probably just flooding the 2,4GHz and 5,8GHz bands with lots of noise so the aircraft’s receiver is not able to hear enough commands and goes to its failsafe programming, if any.

    • CountryBoy

      Radio waves ARE electromagnetic waves. They ARE similar to microwaves – the difference is in the frequency.

    • AlDeLarge

      Microwaves are electromagnetic waves in the 1.6 GHz – 30 GHz range. As mentioned, commercial drones are controlled by radios operating in the 2.4 GHz and 5.8 GHz range. Cell Phones and routers operate at these frequencies too. Microwave ovens generally operate at 2.45 GHz.

  • datimes

    I just read an article today that police in the Netherlands are training large birds of prey like eagles to grab drones out of the air.

  • J K Brown

    This is obviously a focused radio jammer. Perhaps it overloads the comms circuit blowing a fuse? It blocks the drone from receiving signals from the operator, kicking in the loss of comms programming. Apparently, they want a system that is aimed so as to avoid widespread radio disruption, perhaps even to avoid jamming their own drones. As it is apparently being built for security personnel, they made it to fit on the AR as opposed to carrying a separate system.

    • Aurek Besh

      It probably works simply by transmitting enough noise on 2,4GHz and 5,8GHz (the currently most typical RC bands) to drown out the controller’s signal, triggering the UAV’s failsafe programming (if any). It needs to be directional due to the inverse square law – an omnidirectional jammer would need to be extremely powerful to have any effectiveness. Think a focused flashlight compared to a bare light bulb.

  • LCON

    would image, that Mil spec Drone makers are now rushing to develop anti Anti drone technologies. preset navpoint defaults, redundant navigation maybe frequency hopping.
    Mounting on a AR receiver/ rail system was probably chosen because of the shear popularity in the LE/Gov/Mil environment as well as the inherent modularity and ease of training.

  • Shlomo Levi

    it lot of cheapest ways

  • 45 cal

    Short range remedy: 12 Ga……..or ;arge eagle

  • xxx

    I saw this video a couple of months ago. It’s two directional antennas, implying different frequencies, mounted on an AR stock. It implies it’s jamming the RC copters signal forcing it to the ground. I say, imply because when you look closely, the antennas are not connected to anything. You can see the antenna leads and connectors dangling. I’m not saying the system doesn’t exist, just the video is a fraud. The jamming electronics are not embedded into the rifle stock. It could be in a backpack.
    Jamming, it is a federal offense in the US for ANYONE to jam any frequency, even law enforcement. I’m not saying that’s a good thing nor bad, it’s just the law.
    The only organization I would “imagine” that “may” routinely jam is the Secret Service, of course, I don’t know that for a fact.