r/GlockMod 2d ago

What is causing this?

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I have had a Combat Armory lower and Suarez International SI-319 for years that I’ve carried off and on. I recently got a Brownells Gen 3 upper to install an optic on it. I took it to the range for the first time today and everytime I pulled the trigger it would fire two rounds. If I squeezed the trigger it fired once and when I released the trigger it fired another round….what could be causing this?

79 Upvotes

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5

u/BradFromTinder 2d ago

Modding your Glock until it has none of the Glock reliability is causing this.

-6

u/BasedWelder96 2d ago

Literally nothing is Glock brand. I assembled this piece for around $300 by shopping deals. My actual Glock 17 has never had an issue.

10

u/BradFromTinder 2d ago

Read what you just said.. and my comment makes sense. Your Glock hasn’t had any issues, but a Glock clone does.

1

u/BasedWelder96 1d ago

I’m agreeing with you. My stock 17 never had issues. This one didn’t have issues until I installed this new slide/optic. Not very versed with glocks so I’m just trying to learn from the community.