TIKAD sniper drone. Duke Robotics

A US defense contractor has developed a consumer-sized sniper drone which it says could save the lives of soldiers and civilians on the battlefield, but some are voicing concerns, Popular Mechanics reported.

Duke Robotics, a Florida-based defense contractor, developed the TIKAD sniper drone, and recently sold some to the Israeli military.

They're also pitching it to the Pentagon.

The drone is capable of being fitted with a sniper rifle, grenade launcher, a machine gun, or a variety of other weapons, Defense One and Popular Mechanics reported.

It was used successfully by the Israelis but it only stayed airborne for about five minutes due to weight problems, Defense One reported. The TIKAD drone, however, has overcome previous weight and recoil issues.

The co-founder of Duke Robotics, Israeli military veteran Lt. Col. Raziel “Razi” Atuar, said the drone — which is flown and shot by an operator at a distance — will save civilian and soldier lives because it is more precise, as opposed to Reaper, Predator or Switchblade drones that fire missiles.

“You have small groups [of adversaries] working within crowded civilian areas using civilians as shields. But you have to go in. Even to just get a couple of guys with a mortar, you have to send in a battalion and you lose guys. People get hurt. The operational challenge, it bothered us,” Atuar told Defense One.

But others are leery about the prospect of sniper drones.

"Big military drones traditionally have to fly thousands of feet overhead to get to targets, but these smaller drones could easily fly down the street to apply violent force," University of Sheffield Professor Noel Sharkey told the BBC.

"This is my biggest worry since there have been many legal cases of human-rights violations using the large fixed-wing drones, and these could potentially result in many more," Sharkey said.

Mary Wareham, of Human Rights Watch, also voiced similar concerns.

Sharkey also told the BBC that he worries about the TIKAD drone, which private citizens can purchase from Duke Robotics, being copied by terrorist groups like ISIS.

"It won't be long before everyone has copies," Sharkey told Popular Mechanics. "Some of these will be a lot less stable and less precise. We have already seen ISIS employ small commercial drones for strikes with explosives."

ISIS has been known to use drones for surveillance, guidance and even for dropping bombs.