Semiautomatic firearm ban passes Colorado's House, heads to Senate
Colorado’s Democratic-controlled House on Sunday passed a bill that would ban the sale and transfer of semiautomatic firearms, a major step for the legislation after roughly the same bill was swiftly killed by Democrats last year.
The bill, which passed on a 35-27 vote, is now on its way to the Democratic-led state Senate. If it passes there, it could bring Colorado in line with 10 other states — including California, New York and Illinois — that have prohibitions on semiautomatic guns.
But even in a state plagued by some of the nation’s worst mass shootings, such legislation faces headwinds.
Colorado’s political history is purple, shifting blue only recently. The bill’s chances of success in the state Senate are lower than they were in the House, where Democrats have a 46-19 majority and a bigger far-left flank. Gov. Jared Polis, also a Democrat, has indicated his wariness over such a ban.
The Colt Single Action Army is likely one of the most iconic pistols in the US, "The gun that won the west." You've seen them in many movies without realizing it.
The term you're looking for his "single action" or sometimes "cowboy action" though that will also include lever action rifles and shotguns, and break actions as well.
Single Action is defined by the trigger having the single function of releasing the hammer (you thumb and cocks the hammer which rotates the cylinder separately). Double action trigger pull will rotate the cylinder and cycle the hammer.