Advice for installing proper screw length for optic

[NMEDGE]

How do i ensure i have the proper screw length to install optic on pistol? I have size for screw but not sure on screw length.

 

[835mag]

Does the pistol use mounting plates or is it direct mount to slide?

 

[SimonRL]

How do i ensure i have the proper screw length to install optic on pistol? I have size for screw but not sure on screw length.

What optic are you installing onto which gun. Honestly, it’s kind of a crap shoot because there are so many combinations. I have a collection of of different screws (4-40/6-32/M3/M4) at different lengths exactly because of this. I also have metric and saw screw cutters just in case. It’s hard cutting screws with a wheel and I don’t have a belt sander. Filing screws down just plain sucks. You can buy a pretty comprehensive package of optic screws from Vortex.

 

[NMEDGE]

Installing a Holosun 507k on HK CC9. I did purchase a package of different sizes and I guess I will do the trial and error method. From what I understand it's better to be a little shorter than longer. HK says M4x0.7-6 Holosun says 6-32. As long as the gun works and the optic doesn't fall off I guess i'll be good to go. Thanks for responding back to me.

 

[Sharks79]

I always called em super champs but something like this can help cut them down

https://www.harborfreight.com/3-in-1-multipurpose-stripper-crimper-and-cutter-59714.html?utm_source=google&utm_medium=cpc&utm_campaign=21901739207&campaignid=21901739207&utm_content=171677808942&adsetid=171677808942&product=59714&store=&gad_source=1&gad_campaignid=21901739207&gbraid=0AAAAADAHb4ciW2q1G8_crp7QY5zVY_uLG&gclid=EAIaIQobChMI8qKc_YGIjwMV1bMDAB2iXxt8EAQYAiABEgKvlfD_BwE

 

[Jsimon78]

Personally I’m not a pro at this because I did one right and one that had the optic hitting my head. It was a costly repair to get the screws out.

 

[Sharks79]

Personally I’m not a pro at this because I did one right and one that had the optic hitting my head. It was a costly repair to get the screws out.

It’s not failure, it’s an opportunity to learn.

 

[Jsimon78]

It’s not failure, it’s an opportunity to learn.

I do agree. I also had issues with that M&P till that point and now it goes into rotation for EDC. I’m thankful for the gun smith that worked on it.