Quick Answer
For installing a new trigger, you'll need a trigger pin punch, a small hammer or mallet, and a set of calipers or a micrometer to ensure proper trigger pull weight and overtravel.
Choosing the Right Punch
When selecting a trigger pin punch, look for a high-quality, precision-made tool specifically designed for this purpose. A punch with a solid, heavy base and a precisely machined tip will provide the necessary leverage and control to drive out the existing pins without damaging your firearm’s receiver.
Measuring and Adjusting
Use a set of calipers or a micrometer to measure the existing trigger pull weight and overtravel to ensure your new trigger is properly adjusted. This is crucial, as a trigger that’s too light or too heavy can result in inconsistent shooting or safety issues. Aim for a trigger pull weight between 2-3 pounds, with an overtravel of 0.125-0.25 inches.
Tools and Techniques
In addition to the trigger pin punch, you’ll also need a small hammer or mallet to drive out the existing pins and a trigger adjustment tool (if your new trigger requires it). Use a rubber mallet or a soft-faced hammer to avoid damaging the receiver or the new trigger. When driving out the existing pins, use a gentle, rocking motion to avoid applying too much pressure, which can result in damage to the surrounding area.
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