Ok, so modern unmanned aerial vehicles aren’t nearly as much a threat as Skynet and these weapon systems really wouldn’t do anything to the T-1,000. However, today’s remote-controlled drones can prove to be major security risks as surveillance or even explosive-delivery platforms. It’s this threat that the 40mm net grenade and SkyWall 100 bazooka are designed to combat.

On February 5, 2019, the U.S. Army acquired a patent for a 40mm grenade designed to snare and defeat UAVs. I can already hear you typing, “Why not just shoot them out of the sky with air-burst rounds or regular bullets?” Well, the first problem is escalation of force. Depending on the ROE, live fire may not be approved as a reaction to unmanned surveillance. There’s also the fact that bullets fired into the air that don’t connect with their target will eventually fall to earth and potentially strike an unintended target. Additionally, shooting down a drone creates the danger of an uncontrolled airborne object falling from the sky, most likely over friendly forces. This danger is amplified if the drone is carrying explosives.

Enter the 40mm net grenade. Based on the standard 40mm grenade platform used in weapon systems like the Mk19 and M320 grenade launchers, the 40mm net grenade provides troops with a non-lethal standoff countermeasure to combat drones. The basic components of the grenade are the net and proximity detector. The operator aims at the drone and fires the grenade. At six to nine yards from the target, the proximity detector detonates a small charge that propels the petals and weights from the grenade and casts the net. The net ensnares the drone thereby neutralizing it.

The Army has reported that initial tests of the net grenade have been promising since it is easily operated and it is extremely effective against multiple targets — that’s right, against drone swarms.