I'm running a PRI front sight/GGG A2 flip up rear on a 16" barrel.  I have about run out of adjustment and the rifle still shoots about 4 inches high using the GI manual sight-in method.  If I go up too much more I will run out of threads and the front sight/spring/plunger group is going to go parts unknown.  I have tried a GI front sight post and NM (thinner and what I prefer) front sigh post and this in the best I can get.

Are there any soruces out there for longer front sight posts?  Ive looked on Brownell's and Fulton's  web sites but no luck so far.

Thanks

Thanks Troy.  Iwaded thru Brownells and couldnt find a thinner from sight, so I guess I'll go with bushmaster unless you know of another source for a taller and thinner front blade.