A NH resident can purchase and own a suppressor(commonly known as “silencer”) from either a NH resident or transfer through a NH Class3 dealer. You need to have a certain BATFE (Bureau of Alcohol, Tobacco, Firearms and Explosives) form signed off by your Chief Law Enforcement Officer. You must be at least 21 years old. You must not have any felony convictions. RSA 207:4 prohibits their use while hunting, as an anti-poaching measure You need a permit to carry in NH.