July 20th, 2014

Tech Tip: Blue-Printing Triggers

gunsmithing Speedy Thomas Gonzalez triggerTrigger Blue-Printing — Why It Can Be Important
by Thomas “Speedy” Gonzalez

To Blueprint or Not? That is the Question.
I often get asked is it really necessary to blueprint a custom match trigger. “Abolutely” is my answer. Here is an example that demonstrates why. After I completed a recent rifle project, the gun’s owner and I took the rifle to the range to break-in the barrel. But we quickly noticed a problem. The owner Alex L’s first statement was: “This trigger sucks — better blueprint it when you get back.”

Not only did the trigger feel rough and scratchy, but it failed to hold the cocking piece 2 out of 10 times when cocking the rifle for the next shot. Not good.

No matter what we tried at the range, the problem persisted. As soon as we returned from the range, I had to take the trigger apart to solve the mystery.

As soon as I opened her up on the operating table it was evident to me where the problem was. I have only seen the inside of about 3000 of these rascals and the head of the Over-Travel Screw stuck out like a sore thumb. The head of the Over-Travel Screw was nearly twice as thick as its other brothers and sisters. This caused the relationship between travel adjustment and sear engagement to be nearly impossible to adjust. And that, in turn, created a serious safety issue.

To remedy the situation, I replaced the screw with [another screw with] standard head thickness and ALL PROBLEMS DISAPPEARED… Amazing! Had I blue-printed this trigger before going to shoot, this never would have happened.

gunsmithing Speedy Thomas Gonzalez triggergunsmithing Speedy Thomas Gonzalez trigger

So, should one blueprint a trigger? I say “Hell yeah” if you are serious about competiting and winning. Otherwise be prepared for the worst. — Speedy