Muzzle action trigger, often used in the US military and ROTC rifle programs
action film | Total Nonstop Action Wrestling | action | Strike action | People's Action Party | Democratic Action Party | Action film | class action | live action | Action-adventure game | A Civil Action | National Action Party (Mexico) | National Action Party | Action Comics | strike action | direct action | Looney Tunes: Back in Action | European External Action Service | Catholic Action | Action Against Hunger | Trigger Happy TV | Right Thoughts, Right Words, Right Action | Last Action Hero | Americans for Democratic Action | action-adventure game | Academy Award for Best Live Action Short Film | Tracker action | Rainforest Action Network | Action démocratique du Québec | Action Comics 1 |