I am a Hasbeen with 27 years in the USMC, USMC Distinguished Rifleman, NRA High Master competitor, National Champion with service rifle, numerous state championships w SR, 7 or 8 time Presidents 100 award/ top 10 a few times, MC Matches championship, senior chief instructor NATO Penthalon teams, MC Marksmanship Schools instructor, SS & Recon - it is at least 90% front sight tip, again front sight tip- don't worry about the nose to the charging handle- if you are thinking about this you're not focused on the FST. Stay Center.