HK 416 sights on vector

So I just got a set used legit HK 416 10.5 sights that come off a LEO trade in rifle. I have them on my 9mm vector for now, but haven't zeroed them. Because they were made for the 416 10.5" rifle, is it possible I will run into any zeroing issues?

Hi, I think it is possible, depending on the height of the front post in them.  There is a thread (currently messed up with broken image links) that talks a bit about the original Vector post height and it being made for the .45 ACP (vs. 5.56/.223).

http://www.krisstalk.com/t6-kriss-buis-magpul-and-mwi-origins

Yea, I know that the HK sights will zero on a AR-15 with a similar barrel length. I had to bottom out my magpul front sight to get it zero'd at 25 yards. I haven't gotten a chance to zero these yet. I'm gonna be buying a red dot soon, so when I get it I will zero both of them all at once.