Glock SA or DA??
I have always wondered this, and debated it with friends. I feel that a Glock is a single action because the slide has to be pulled back for the gun to be cocked. You can not cock the gun by squeezing the trigger like you can with a Beretta 92 or Sig 226. I was always told that the double of 'Double Action' was the action of cocking it and releasing the hammer, where Single action was only releasing the hammer. Now the tricky part is that the sear on the Glock does move back very slightly therefore pulling the striker back a little further than it was before the sear releases it. So, is it a SA or DA or a combo of the both. Please include a reason as to why you feel it is SA or DA.
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Actually, it is neither... It does not have a conventional hammer but rather what is called a "striker".
Yes, it has the attributes of a hammerless SA since you have to pull the slide back slightly to "reset" it, but does feel like a DA with the longer trigger pull. Glocks "connector" can be replaced which either lowers or raises the pressure required to fire (depending on the situation). Also, you can polish the parts that rub together (VERY CAREFULLY) to both lighten the pull and greatly reduce the creep. They'll never feel like a nice SA trigger, but it helps.0 -
Hammer or striker, it doesn't matter. The SA or DA refers to just releasing the sear or cocking and releasing the sear. DAO's have strikers also. If it is neither, then what is it. It must have a name? 0 -
The terms came about for revolvers and attempts have been and continue to be made to apply those terms to semi-autos, which not being revolvers and sharing the same mechanical functions, are difficult to classify as simply SA or DA. But that certainly don't stop people (manufacturer, gun writer and consumer alike) from trying.
For your peace of mind, and until this comes up again in another couple weeks or so .... SA as it pertains to semi-autos is where the hammer or striker has to be cocked or set by an action of the slide or some action other than pulling the trigger, and released by the action of pulling the trigger.
So that leaves double action as being a pistol (semi-auto) where the hammer or striker is cocked or set by the action of pulling the trigger and then being released as the trigger travels further back.
Now for the "tweener" question that is sure to be lurking out there.
If you have a semi-auto pistol that is able to cock the hammer or set the striker by trigger pull on the first shot and that subsequent recocking (resetting) of the hammer or striker is done by the slide action ... thus giving different trigger pulls (first longer and typically heavier with second and beyond being lighter) you have an SA/DA.
And I'm not going to replow this ground further by trying to give explanations bringing decockers, etc., into play.
Hopefully this will give you some basic criteria and the topic will be put to rest for a few more weeks. However, if you would like to read more forum opinions on the subject, do a search and you should end up with a fair amount of material.
If you only have time to do two things so-so, or one thing well ... do the one thing!0 -
Revolvers from which the terms SA and DA derived, also involved advancing a fresh cartridge by the action of trigger or hammer. So right from the start, extending the terms SA/DA to autos acompromises the terms. However, even in revolvers there were variations such as in the Starr of the 1860s. An example of the SA is the SA Colt Army and an example of a DA is the hammerless S&W revolver. Most modern revolvers are combination guns which can function SA or DA at your option.
The Glock action is a variation that perhaps deserves its' own term. "Glock Action". It is probably closer to the single action since it requires manual reset or firing reset to bring the striker to its' half cock position from which it can then be fired by pulling the trigger. A dead primer cannot be restruck without resetting the striker to half cock.
I recently bought Keltecs' P11,9mm and P3AT,380. The P11 is "DAO" while the P3AT has the Glock Action.0 -
Strictly speaking, the Glock is SINGLE ACTION. No two ways about it.
It only fires ONE way, making it single action.
The term Double Action Only, or DAO, is a contradiction. It cannot exist. A so-called DAO gun is, strictly speaking, a SINGLE ACTION, because it will only fire one way.
Double action means the gun can be fired by trigger cocking or by manually cocking the hammer.
Sorry, but the later revision of firearms nomenclature and definitions don't fly with us traditionalists.
SIG pistol armorer/FFL Dealer/Full time Peace Officer, Moderator of General Discussion Board on Gunbroker. Visit www.gunbroker.com the best gun auction site on the Net! Email davidnunn@texoma.net0
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