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I am new at this so please forgive my ignorance, but would someone please explain to me what a DAK trigger is?
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DAK-(for Double Action Kellerman, after the designer of the system). When firing the pistol the first trigger pull is only 6.5 lbf (compared to 12 lbf for the standard DAO). After the pistol fires and the trigger is released forward the trigger has an intermediate reset point that is approximately halfway to the trigger at rest position. The trigger pull from this intermediate reset point is 8.5 lbf. If the trigger is released all the way forward, this will engage the primary trigger reset and have a trigger pull of 6.5 lbf. To engage the intermediate reset the trigger must be held to the rear while the slide is cycled, either manually or by the recoil of a round being fired.
In bare-bones description, the DAK mechanism provides a hammer-fired full-length double-action trigger pull, with complete repeat-strike capability, that is notably lighter than other full-length DAO pull mechanisms. Developed by the engineers at Sauer in Germany, the new DAK trigger system delivers a smooth, consistent 6.5-pound full-length trigger pull that is much closer to the weight of a Glock than any conventional DAO but also has complete restrike capability without any pretensioning or prestressing of the internal firing mechanism. There is nothing magical about the design; everything is accomplished by simple mechanical advantages in the trigger/hammer linkages. The key is that the engineers were able to extend the "leverage arm" of the hammer from the pivot point (like sitting farther from the fulcrum of a seesaw) so that less force is required from the trigger while remaining within the existing dimensions of the P226 and P229 frames. Externally, the only visible difference between a SIG DAK mechanism and a conventional SIG DAO mechanism is that the DAK trigger has a slightly slimmer profile and the DAK hammer sits completely within the frame when at rest, while the DAO hammer protrudes slightly. Other attractive features include the fact that the slide must be locked back and the magazine removed to disassemble, and it can be disassembled without having to pull the trigger.