Greeting my friends, it's been a while since I've posted anything. I have a baby on the way so my time is next to none...lol I have a LDI Dbal-A2 mounted at the 12 o'clock position on my rail. The problem is the DBal covers up my front flip up sight post completely. I want to keep the DBal in it's current position but I am wondering if I can use alternate BUIS that will work with my HK. I looked at Troy's Micro BUIS, but I think those are even lower then the stock HK ones. I am leaning toward KAC 600m flip ups. Any help is greatly appreciated...