Even in a situation where no one is saying anything about the use of the term trigger management, modern handgun training resembles one a great deal. Learners are trained to set, tackle, dismantle, and press again – frequently as much attention is paid to touch and time as to either vision or position.
Such focus did not occur because it was accidental. This was preceded by few trigger systems that transformed what teachers could expect reasonably of a mixed group of first time shooters, older experienced carriers and competitive minded students. It is the designs that transformed the practice habits by altering what the trigger required.
1. Partially pre-cocked striker with three passive safeties (Glock Safe Action)
There were not many systems that manipulated baseline expectations such as the striker-fired trigger that developed around a steady pull of the trigger throughout the entire sequence of rounds. Rather than instructing students to be able to master a heavy first press and then a light press, most courses changed to one press that repeats, one reset to learn, and one set of errors to diagnose. The engineering aspect was relevant to training: three independent mechanical safeties are used in series, following trigger movement; trigger safety, firing pin safety, and drop safety, and automatically restarting work on release. That package promoted the curricula where the emphasis was on the disciplined finger placement and holstering habits instead of controlling external levers. It also rendered trigger reset a universality exercise, as the functioning of the apparatus focuses on the allowance of the trigger forward to cease only as much as needed to jump back and push the trigger again.
2. Traditional double-action/single-action (DA/SA) with decocking
DA/SA was a training staple, as it requires two distinct skills: a long, slow first press is required then the hammer is recoiled, where shorter, lighter subsequent presses then occur. The introduction of a decocker, which was used to safely lower the hammer, introduced an administrative procedure which many training programs used to make a pattern that could be checked and re-checked. Instructors had constructed whole blocks on learning to master the first shot, since the first press is more likely to reveal the grip tension, trigger steering and anticipation, than the second press, which is a single-action. The reward was a student who was able to switch between two trigger behaviors without the loss of the cadence or tracking of the sight.
3. Double-action-only (DAO) hammer-fired pistols
DAO semi-autos encouraged consistency in training by coercion: each shot had to be made in the same long press, since the hammer is both cocked and released with each firing. That eliminated the DA/SA transition, but required improved fundamentals in each round. Conversion discussions showed how mechanically these systems can be integrated, particularly in common service pistols. The loss of a single-action sear was not a casual omission, and on certain designs the sear has additional components and safety tasks that will impact reliability and safe use. Programmes that issued or backed DAO tended to be more geared towards continuous presses and follow-through since there was no simple one move phase to disguise breaches of technique.
4. Double Action Kellerman (DAK) with short-stroke penalty reset
DAK modified the training of some of these shooters to control reset during stress. The characteristic behavior of this system is that, even with a partial release, a heavier pull than full reset is possible, which creates what is termed as a discouraging pull, such that is a design that discourages careless trigger work through a punishment pull weight following a short stroke. In the case of training, that meant that instructors could show, using the same pistol, how inconsistent reset habits can cause a change in the feel of the trigger, and the force needed. Students were trained to either use full reset to become consistent, or to use a definite heavier press when they short-stroked, rather than to unconsciously seek an inconsistent break point.
5. Single-action-only (SAO) semi-autos
The SAO triggers establish the contemporary standard of what a short, sharp break can be like in a handgun. When the triggering is done via the release of the sear that occurs with the hammer cocked by means of movement of the slide, it allows the firearm to have a rapid cadence and high precision provided the shooter remains disciplined.
The manual safety, however, needed to be included in the training, as a part of all presentations and reholster practices. Where striker and many DA/SA systems allow the instructor to teach about trigger press and finger discipline, SAO requires a level of further repetition: safety manipulation has to be automatic, consistent and checked without visual attention. That demand affected the organization of many programs regarding the dry practice, draw strokes and post-string processes.
6. Striker-fired “one press” learning curve as a curriculum driver
The wide proliferation of striker-fired handguns realigned expectations on a basic level. Being described in general striker operation, loading the slide makes the striker at a state of spring tension and the trigger releases that tension to shoot, and repeats the same sequence with each firing. Fewer action modes would allow instructors to devote less time to mechanical transitions and more to grip, sight management and diagnosing movement caused by the trigger. This did not simplify training, but made it more standardized. A mixed group may tend to do the same drills with trigger-control less often, less special-case safety briefings, and less time elucidating why the initial shot of a particular shooter was so fundamentally different than the next.
7. Double-action revolver triggers as a diagnostic tool for trigger control
The two-fold action revolver had long before the dominance of the modern striker reduced the trigger to a lesson: the trigger not only cocks but also releases the hammer, and the hammer is recocked every time the gun is fired. Teachers have been making use of that long stroke to show any faults on lighter triggers jerking, not staging uniformly, and dropping grip pressure at the break. Although semi-autos had become the default, the work of revolver-like double-action quietly had an impact on the overall drills that focused on continuous presses, continuous sight focus, and follow-through.
It was not just a simple case of the revolver surviving to the modern world, but it became the benchmark on what clean press is. In all these systems, fashion and brand allegiance is not the unifying factor. It is the way that mechanics define the human input: the distance that the trigger moves, the way that it rebounds, the distance that it needs to pass on the first impact, the safety measures that should have been followed perfectly. Training in the modern form developed as trainers got accustomed to those needs – then formalized what was good enough to be taught, coached and assessed on a large scale.
