Unlawful firearms and parts contraband.
RCW 9.41.220
in effectAll machine guns, bump-fire stocks, undetectable firearms, short-barreled shotguns, or short-barreled rifles, or any part designed and intended solely and exclusively for use in a machine gun, short-barreled shotgun, or short-barreled rifle, or in converting a weapon into a machine gun, short-barreled shotgun, or short-barreled rifle, illegally held or illegally possessed are hereby declared to be contraband, and it shall be the duty of all peace officers, and/or any officer or member of the armed forces of the United States or the state of Washington, to seize said machine gun, bump-fire stock, undetectable firearm, short-barreled shotgun, or short-barreled rifle, or parts thereof, wherever and whenever found.
All machine guns, bump-fire stocks, undetectable firearms, short-barreled shotguns, or short-barreled rifles, or any part designed and intended solely and exclusively for use in a machine gun, short-barreled shotgun, or short-barreled rifle, or in converting a weapon into a machine gun, short-barreled shotgun, or short-barreled rifle, illegally held or illegally possessed are hereby declared to be contraband, and it shall be the duty of all peace officers, and/or any officer or member of the armed forces of the United States or the state of Washington, to seize said machine gun, bump-fire stock, undetectable firearm, short-barreled shotgun, or short-barreled rifle, or parts thereof, wherever and whenever found.
Source: WA Statutes (Official Site)URL: https://app.leg.wa.gov/RCW/default.aspx?cite=9.41&full=trueFetched: 6/28/2026