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). Some...

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...

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

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

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

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...

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...

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...

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

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...

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...

Taurus Millennium series is a product line of double-action only (DAO) and single-action/double-action hammerless, striker-fired, short recoil operated...

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

factory with a 24 newtons (5.5 lbf) single-action pull, and is capable of both single-action and double-action. Pulling back the slide sets the hammer backwards...

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 - .38 S&W Special) S&W .38/44 Outdoorsman (US - Double-Action Revolver - .38 S&W Special) S&W .44 Double Action (US - Double-Action...

revolvers, specifically the Manual Ejecting and Automatic Ejection Double Action Revolvers. The 32 H&R cartridge was dimensionally longer than many other...

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

produced a "7-shot .22 solid frame double action revolver, made between 1875 and 1907, known as the XL No. 3 Double Action small frame. The .32 Smith & Wesson...

conditions. The 4506 is a traditional double-action/single-action pistol. The first shot may be fired either in double-action mode, if the hammer is not cocked...

and fluted cylinder are made of stainless steel. The LCR operates in double-action only (DAO), as the hammer is concealed within the frame handle's fire...

and available in various models with double-action-only (DAO) and double action/single-action-type trigger actions. PT 24/7 pistols are manufactured by...

accordions, are "double-action" – or unisonoric – because each key produces a single note regardless of bellows direction.) Other single-action or bisonoric...

grenade launcher – 40×46 mm Grenade: Variant of the M203. Features a double-action trigger and a longer breech opening to accommodate less-lethal ammunition...

(US – Double-Action Revolver) Colt M1877 Lightning Double Action (US – Double-Action Revolver – .38 Long Colt) Colt M1877 Rainmaker Double Action (US –...

The Taurus PT92 is a double action/single action, double-stack-magazine fed, short recoil-operated, semi-automatic 9mm pistol manufactured by Taurus in...

The New Nambu M60 (ニューナンブM60) is a double-action revolver chambered in .38 Special based upon Smith & Wesson-style designs. It was designed and produced...