While some units in the Air Force have pulled the M18 from duty after a discharge killed an airmen last week, officials from the other services said they have no plans to modify or pause use of the pistol.

The US military is investigating its new service pistol after the fatal shooting of an Air Force guard — following claims that the gun can fire without the trigger being pulled, writes the New York Post.

The Sig Sauer M18, the military version of the popular Sig P320 handgun, has been at the forefront of multiple lawsuits alleging that the weapon can fire unprompted.

It’s now been pulled from standard use at several facilities after a security service member was killed on Sunday at the FE Warren Air Force Base in Wyoming, when the gun discharged, officials said.

The Army, Navy and Marine Corps are not planning to pause use of the M18 pistol as a primary, daily service sidearm for their troops, the services told Task & Purpose, even as units in the Air Force pull the weapon from service after an airman was killed when his M18 discharged last week, writes Task and Purpose.

The M18 pistol is produced by Sig Sauer as a military version of the company’s P320, a model that has drawn lawsuits and attention in recent years after incidents where users alleged that the gun fired on its own. In military usage, a law enforcement training agency in Washington recently chronicled at least six possible unintentional discharges on or associated with military bases involving the M18 or M17, a slightly larger version of the handgun.

Concerns about the handgun were heightened last week when Airman Brayden Lovan, 21, was killed when his M18 discharged at F.E. Warren Air Force Base, Wyoming, according to Air Force officials. The circumstances around how the weapon fired are under investigation. Lovan was a security forces airman assigned to the 90th Security Forces Squadron, a role that required him to regularly carry a sidearm.

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