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2/12/2011 10:28:28 PM EDT
I have an AR with a "B2" marking on the front sight.  It is a flat top and I have heard that your front sight needs to be marked "F" for Flat top.
Anyone have any ideas?
2/13/2011 12:28:02 AM EDT
[#1]
Might possibly make a difference on a carbine sight picture.  Never had a problem sighting one in myself.  Think the real problem is a Colt carry handle sight on a non F marked FSB but as stated I never had a problem and I think if it shows up it will only be in the 25-50 yard range.  If a problem either a non milspec carry handle sight,  most any other iron sight, or a taller front sight post (cheapest) will fix it.  On a rifle length sight picture, not a problem.
2/13/2011 2:18:45 AM EDT
[#2]
Quoted:
I have an AR with a "B2" marking on the front sight.  It is a flat top and I have heard that your front sight needs to be marked "F" for Flat top.
Anyone have any ideas?


That B2 is just a forge mark to denote the forge house. Unless it's LMT, who doesn't mark their FSBs with the F but are still F height, then it's prolly not F height. F marked FSBs are only beneficial on flat top carbines. Do you have a carbine? Either way, just see if you can get a good zero. If it zeros then you have nothing to worry about. If it doesn't then you may need a taller FSP.
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