CONCORD, N.H. (WTNH) — Connecticut is among 13 states involved in a lawsuit against a popular type of Sig Sauer pistol that has reportedly been firing on its own.

The lawsuit was filed on Wednesday in U.S. District Court in Concord, New Hampshire. Police and federal law enforcement say that there have been over 100 incidents of the P320 firearm firing without the user pulling the trigger.

20 people from various states are behind this lawsuit, calling for a trial and unspecified monetary damages. According to the lawsuit, “the weapon lacks industry-standard safety features and has fired without the user deliberately pulling the trigger many, many times”.

The 20 plaintiffs include Texas, Georgia, Connecticut, Tennessee, Oklahoma, Virginia, Louisiana, Florida, Massachusetts, Wisconsin, Minnesota, Washington and New Jersey.

Many users reported that the gun fired while still in the officers’ holster, causing serious injuries to the leg, hip, or even to bystanders. However, Sig Sauer is denying that the pistol is capable of firing on its own.

Sig Sauer makes guns for international military and commercial sales. The majority of users are law enforcement officers, former military personnel and/or trained and certified gun owners. The gun has been in service since 2014.

The lawsuit also states this is not the first lawsuit against Sig Sauer. Milwaukee’s police union sued the city earlier this year to have the gun removed from service. Police say that in the last two years, these P320 pistols misfired three times, causing serious injuries to two officers.

In another case, Sig Sauer offered refunds or replacement handguns to users after a federal class action lawsuit was filed for P320 pistols made before 2017.

Sig Sauer released a statement:

The P320 is designed to fire when the trigger is pulled. It includes internal safeties that prevent the firearm from discharging without a trigger pull. The NH complaint is claiming the short, light trigger pull of the P320 necessitates an external manual safety to protect against a discharge resulting from accidental or unintended trigger actuation. However, the trigger pull force of the P320 is consistent with industry practice, and SIG offers P320 models with a manual safety, providing its customers the opportunity to choose if their P320 should include a manual safety or not based on individual preferences.  Some customers, including many law enforcement agencies, believe that inclusion of a manual safety is a detriment to the safe and reliable use of a pistol given their intended use. Other customers take the opposite view given their intended use. Giving the customer a choice and an opportunity to exercise their philosophy of use with respect to the firearm they purchase is common amongst manufacturers in the firearms industry.

Samantha Piatt, Director of Communications and Media Relations, SIG SAUER, Inc.