Hey guys sorry for the noob question, but when it comes to this topic I am a noob.

I found a hell of a deal on a set of Ameriglo sights for the full size and compact M&P and have a couple questions. These are part # SW-433B

1- would there be any issue at all installing these on or using these sights on a Shield 9?

2- would there be any issue or would it get rid of an issue, if I was to install the Ameriglo full size front sight on my shield and keep the factory 2 dot Shield sight on the rear?

Thanks for any help