Originally Posted By StarsAndBars:
Funny thing. I just got back from the range. I was using my new YHM FF. noticed at 105 meters I was shooting about 2 inches lower than before with regular hand guards. I was consistently grouping at 2 inches low, so I simply adjusting my sights and now I'm tits on. Just thought it was interesting. Final thought... At 105 meters, not sure how much it affects consistency, but as I learned first hand, it definitely affects POI.
This is probably because your FF tube required removal of your barrel nut. Thus your gun needs to be resighted in.