Double action (or double-action) refers to one of two systems in firearms where the trigger both cocks and releases the hammer. Double-action only (DAO)...

which allows for a spring-tensioned hammer/striker to be released. In "double-action" firearm designs, the trigger also performs the additional function...

single-action), or via internal linkage relaying the force of the trigger-pull (as in double-action), or both (as in double-action/single-action). By sequentially...

A Colt Double Action (or Colt D. A. for short) is any of the double-action revolvers manufactured by the Colt's Manufacturing Company. The term is most...

1969. Ruger produces bolt-action, semi-automatic, and single-shot rifles, semi-automatic pistols, and single- and double-action revolvers. According to...

reciprocating engines are often classified by whether they are single- or double-acting, depending on how the working fluid acts on the piston. A single-acting...

double-action revolver – 9×18mm Makarov) OTs-01S (Russian Federation – double-action revolver – .380 ACP) OTs-20 (Russian Federation – double-action revolver...

Model 1892, a double-action revolver with swing-out cylinder. By the end of 1874, serial no. 16,000 was reached; 12,500 Colt Single Action Army revolvers...

slide. The original, first-generation P99 had a traditional Double-Action/Single-Action trigger with a decocker. When the slide is racked completely...

single bun Double, action in games whereby a competitor raises the stakes double, in contract bridge Doubling cube, in backgammon Double, doubling a blackjack...

The Double Action Ladies Football Club is a Botswana women's football club based in Gaborone. Founded in 1995, the club finished as the runner-up in the...

mode to another. This includes combination of double-action and single-action (DA/SA) and double-action only (DAO) modes. In addition to a wide selection...

many "double-action" firearms such as revolvers do not have manual safeties as the longer, harder trigger pull to cock and fire double-action provides...

Double Mode) pistol incorporates many features of the BDA model. It can be switched from double-action/single-action mode to "revolver" mode (Double-Action...

to as the Smith & Wesson .38 Single Action, was a .38 caliber revolver produced in both single and double action by Smith & Wesson. The manufacturer's...

Actions can be categorized in several ways, including single action versus double action, break action versus lever-action, pump-action, bolt-action,...

modern semi-automatic pistols are usually double-action (DA), also sometimes known as double-action/single-action (DA/SA). In this design, the hammer or...

A double-barreled shotgun, also known as a double shotgun, is a break-action shotgun with two parallel barrels, allowing two single shots that can be fired...

The Colt Double Eagle is a double-action / single action, semi-automatic pistol manufactured by Colt's Manufacturing Company between 1989 and 1997. It...

3+1⁄4 in. barrel, modified American Double Action mechanism and frame. Mfg. 1880–1883. Young America Double Action (small solid frame centerfire revolver)...

Double Action Daniels is a 1925 American silent Western film directed by Richard Thorpe and starring Jay Wilsey, J.P. Lockney and D'Arcy Corrigan. Jay...

The Colt M1877 was a double-action revolver manufactured by Colt's Patent Fire Arms from January 1877 until 1909 for a total of 166,849 revolvers. The...

Walther GmbH Sportwaffen. It features an exposed hammer, a traditional double-action trigger mechanism, a single-column magazine, and a fixed barrel that...

large-caliber "snubnosed revolvers". The Colt M1877 Double Action Revolver is a 6-shot, double-action revolver manufactured by Colt from January 1877 to...

mechanisms, double-action OTFs will tend to be more expensive, have a weaker firing action, and a less-solid lockup than comparable single-action OTFs. A...

РЕКС) is a Russian double-action/single-action revolver designed by the state-owned Izhevsk Mechanical Plant (IZHMEKH), with a break-action chamber and an...

Colt's first large-frame, double-action revolver. It combined the front end of the Single Action Army revolver with a double-action, 6-shot frame mechanism...

The Bulldog is a 5-shot traditional double-action revolver designed by Doug McClenahan and produced by Charter Arms. It was introduced in 1973. The Bulldog...

The CZ 85 is a double-action semi-automatic pistol based on the CZ 75 formerly manufactured in Czechoslovakia (now the Czech Republic) by Česká Zbrojovka...

20D (double-action only 2-inch barrel) 20DS (double-action/single-action 2-inch barrel) 30DS (double-action/single-action 3-inch barrel) 40DS (double-action/single-action...