Double action

[Firsttimeshooter]

Hello everyone,

I shot a beretta 92FS today. It had what i believe is a double action trigger. i was wondering why do they make this feature on some guns and what are its benefits? ok thanks for all the great help.

[realmswalker]

A double action is a pistol that has two actions going while pulling the trigger. the first action is the hammer going back, the second is the hammer going forward. Were all the shots like this on the beretta or just the first one?

If it was just the first one and all subsequent shots after that already had the hammer starting in the back position that would be known as DA/SA or double action/single action.

The benefits can be that a gun, such as a revolver that has no safety, has less chance of a discharge.

In a semi auto most times you will find that the first shot will be DA while the rest are SA. Some semi autos are DA only. Why they are like that i don't know, just the way they are made.

Some semi autos are single action only such as a 1911.

I hope this helps some.

Are you looking to buy a gun and wanting to know the benefits of DA in a gun?

[Miltiades]

DAO triggers

In a semi auto most times you will find that the first shot will be DA while the rest are SA. Some semi autos are DA only. Why they are like that I don't know, just the way they are made.

I believe that the advantages of a double action only (DAO) semiauto are the lightness and consistency of the trigger pull. In a DA/SA gun the DA pull is generally in the 10 pound range, with a subsequent SA pull in the 4 pound range. Most DAO guns have a constant trigger pull in the 6 to 8 pound range, which many find to be the best range for both accuracy and safety.

The consistent DAO pull also avoids the DA/SA transition, when the shooter has to adjust to a sudden shift from a 10 pound trigger to a 4 pound trigger in a fraction of a second. This transition affects accuracy unless you have practiced it extensively.

Common DAO guns include Glock, Kahr, and DAK Sigs.

[rivviepop]

Hello everyone,

I shot a beretta 92FS today. It had what i believe is a double action trigger. i was wondering why do they make this feature on some guns and what are its benefits? ok thanks for all the great help.

If this is a regular 92FS then it has a DA/SA trigger, which is pretty common. Militiades told you all about the DA biz, but the *reason* for a DA is many people carry uncocked. The DA is for the first trigger pull out of a holster, the SA then takes over for the rest of your firefight. Some LE agencies (and other outfits) even have policies of DAO (DA Only) triggers to prevent the weapon from being carried in a "locked & loaded" state. Likewise, some outfits require an exposed hammer, some require a decocker and so forth on down the line of what agencies deem safe or appropriate for the public image.

[trinydex]

carrying with hammer down doesn't work with single action only guns.

with a double action or double action only gun you can carry with the hammer down. if you carry with the hammer down you're already implicitly carrying with the ability to draw present and fire without worrying about disengaging a manual safety.

this discussion is less relevant for striker fired pistols like glocks.

[Bug Splat]

My CZ-97b is DA/SA. I like the DA feature because I can drop the hammer on a round that failed to go off the first time. Sometimes all the primer needs is a second punch. Despite this feature I always fail to remember it. If my gun goes click I instinctively rack the slide for a fresh round. Only after I do so do I remember about the DA. Guess its those years competing with a 1911 that ingrained that process in me.

[xxdabroxx]

Some semi autos are single action only such as a 1911.

There are some DA 1911's also, Para makes some:


I do find it somewhat blasphemous though.