We've seen big, bulky Anti-UAV Defense Systems radio-jamming drones out of the sky before, but it looks like the Army also has a much smaller version on its hands. At this year's Association of the United States Army Annual Meeting and Exposition (AUSA 2015), the Army Cyber Institute at West Point was demoing a rifle-sized device that can do the same thing.

Here it is taking out a quadcopter:

Here it is turning off a light and opening the door of a tiny little bunker:

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ACI demos low-cost, rapid-build cyber rifle in stealthy breach of bunker w/ automated light & lock #AUSA2015 @ARCYBER pic.twitter.com/UyOxafXG1O — Army Cyber Institute (@ArmyCyberInst) October 12, 2015

Captain Brent Chapman, Research Scientist at the Army Cyber Institute and the guy who made the DIY cyber rifle explained the concept to me over email.

"It was something that we built in order to illustrate the power of enabling the soldiers at the tactical level to 'make' in support of a mission," he writes "It's an idea we call tactical making, or expeditionary making."

In the future, when targets are guarded by drones and bunkers are vulnerable to exploits, soldiers could easily cobble together practical cyberweapons that cater to their specific needs on the spot, without having to radio back to home base for equipment. " If the Army supports and funds the ability for that infantry platoon leader on the ground to rapidly fabricate a solution with his organic elements (in this case, the "cyber capability rifle"), then we can save lots of time and money," Chapman says.

This particular device, which took 10 hours to build and cost just about $150, uses a Raspberry Pi, Wi-Fi radio, and antenna to take advantage of a known exploit in Parrot quadcopters. The rifle shape, meanwhile, is mostly for kicks. " By putting all of this stuff on the rifle frame, it also makes it very easy for senior leaders to consume," Chapman says. "Aim. Shoot. Crash. "

This post has been updated to include details from Captain Brent Chapman

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