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Gen 5 Glock Performance Trigger in a Gen 3 Frame – My Experience & How To Guide

Brandon Breeze

Well-known member
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Recently decided to tinker a bit and install the Gen 5 Glock Performance Trigger (GPT) into my Gen 3 Glock, which already has a Gen 5 slide that I fitted to it.

This isn’t breaking new ground—others have done it—but figured I’d share my experience in case anyone’s curious or considering the same setup.

Installation wasn’t overly complicated, but it did require a few mods:
  • Slight modification to the trigger housing
  • A little work on the trigger shoe as well

Nothing too intense if you’re comfortable with Glock internals, but definitely not a straight drop-in.

Why do it?
Honestly? I saw the GPT at my LGS, got curious, and thought “What the heck—let’s give it a shot.” I’ve always liked mixing platforms and seeing what works.

So far, function checks are solid. I’ll get it out to the range soon and report back if anything noteworthy comes up.

Let me know if you’ve tried something similar or have questions—happy to compare notes.

 
And by popular demand (of one person) I took the snippet of how I assemble the GPT quickly and made a short for folks to reference:
 
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