METRONOME

The Metronome adjustable trigger features a repositioned plane compared to the original model, while maintaining the same travel.
This means that, despite the identical travel, the pre-travel is reduced by 50-70%.

THE IMPORTANCE OF DISTRIBUTION

Trigger operation is closely related to the conscious use of the weapon system, especially in GLOCK models. Many shooters tend to think of the trigger pull system as a single action, but in reality this is not the case. By design, Glocks adopt a double action system with a peak.

The first stage of the draw serves to cock the striker by compressing a spring. In the Generation 1-4 models, only one spring is compressed, while in the Generation 5 models two springs are used: the striker spring and the return spring.

It is important to note that, in Generation 1-4 models, the return spring works in reverse, acting in traction. When the trigger is pressed, this spring is not loaded, but released. In these systems, the return spring is counteracted by the firing pin spring , a balance that is essential to avoid the dangerous trigger failure condition , which could cause an accidental discharge.

When analyzing the pull on a graph, one observes an initial curve that culminates in a peak, representing the complete cocking of the striker, followed by a decreasing peak due to the collapse of the overtrigger.

The SMT improvements have a well-defined goal: to optimize the fire cycle.
The trigger pull of a Glock is divided into three main phases: trigger pre-travel, trigger release, and trigger reset.
The aim is to achieve a balanced distribution between these phases.
In the SMT trigger groups, this distribution is uniform , and above all thanks to the Metronome trigger kit, which marks the firing phases in a rhythmic and regular way.

OPERATIONAL SAFETY CHECKS

After installing it, always check the safety features and if everything is working perfectly!

THE SMT CUSTOM PHILOSOPHY

SMT Custom is a small artisan company in the field of gun accessories.
The principle on which the entire company is based is that function determines form, so each SMT product has no aesthetic choice for its own sake.
If it's not needed, it's not done.
Precisely for this reason, each SMT product is sterile and without identifying marks.
Its products can be recognized for their innovative construction solutions and obsessive care.