NRS 202.274: Unlawful import, sale, manufacture, transfer, receipt or possession of certain semiautomatic firearms, devices or parts that modify semiautomatic firearms: Penalties; exceptions.

1. Except as otherwise provided in subsection 3, a person shall not import, sell, manufacture, transfer, receive or possess:

(a) Any manual, power-driven or electronic device that is designed such that when the device is attached to a semiautomatic firearm, the device eliminates the need for the operator of a semiautomatic firearm to make a separate movement for each individual function of the trigger and:

(1) Materially increases the rate of fire of the semiautomatic firearm; or

(2) Approximates the action or rate of fire of a machine gun;

(b) Any part or combination of parts that is designed and functions to eliminate the need for the operator of a semiautomatic firearm to make a separate movement for each individual function of the trigger and:

(1) Materially increases the rate of fire of a semiautomatic firearm; or

(2) Approximates the action or rate of fire of a machine gun; or

(c) Any semiautomatic firearm that has been modified in any way that eliminates the need for the operator of the semiautomatic firearm to make a separate movement for each individual function of the trigger and:

(1) Materially increases the rate of fire of the semiautomatic firearm; or

(2) Approximates the action or rate of fire of a machine gun.

2. A person who violates any provision of this section is guilty of a category D felony and shall be punished as provided in NRS 193.130.

3. This section does not apply to:

(a) Any employee of a federal, state or local law enforcement agency carrying out official duties.

(b) Any member of the Armed Forces of the United States carrying out official duties.