Ik ga effe schaamteloos knippen en plakken vanaf de Glock-papers, omdat ik mijn bed hoor roepen. Ik hoop dat jullie Engels een beetje up-to-date is:
Safe-Action Trigger System
The topic of endless debate, ridicule, and confusion, the Glock Safe-Action system is neither single-action (SA) nor double-action (DA).
The Glock, unlike most centerfire handguns, does not have a hammer which is dropped to push a firing pin when the trigger is pulled. Instead, the Glock has a striker which is completely enclosed within the slide. Whenever a round is in the chamber, the striker is partially retracted under tension. There isn't enough tension to fire the gun if for some reason the striker were forced forward from this position.
When the shooter pulls the trigger, the striker is retracted the rest of the way to full tension, wherefrom it can fire the gun. Because the trigger action needs only retract the striker part way, the trigger stroke is shorter and lighter than traditional DA designs.
The biggest advantage of the Safe Action system is that the trigger pull is consistent from shot to shot. Unlike DA/SA guns which fire their first shot with a long, heavy DA stroke and subsequent shots with lighter, shorter strokes, the Glock pull never changes. Glocks come standard with 5½ pound triggers, but a certified armorer can increase it to 8 or 11 pounds. There is also a 3½ pound trigger option available on certain competition models and from aftermarket retailers such as Glockmeister. SA and DAO (double-action only) guns share this feature, but SA guns require the shooter to disengage a safety switch before firing, and DAO guns have significantly heavier trigger pulls (9 pounds or more).
The end result of the Glock Safe Action is a light, short, consistent trigger stroke which nevertheless needs to overcome the small resistance of compressing the firing pin spring fully. That's why I refer to Safe Action as "single-action on the street and DAO in the courtroom."
Bron:
http://www.f-r-i.com/glock/misc/overview.htm
