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4/12/2007 11:04:10 AM EDT
Ok...Flat top M-4 profile receiver/barrel.

Best I can get it adjusted is about 3 inches high at 50 yards. I cannot find a F on the FSB. Windage is OK.

I guess my question is there enough deference in the FSB's to account for this or do I have a Fubared barrel/install/other issues?
4/12/2007 5:17:43 PM EDT
[#1]
Sounds like the FSB is not an "F".  You can either change the FSB or get a taller FS post to compensate.  I have seen them for a couple of bucks.  Do not have a link handy.  Maybe someone else can give a link.
4/12/2007 5:46:55 PM EDT
[#2]
The assumption is that you have already adjusted the front sight up to it's fullest extent???
4/12/2007 6:36:46 PM EDT
[#3]
Yes, you have the wrong FSB.  No, don't change it.

Just buy the taller front sight post.  It is a cheap part and an easy job to replace it.

No big deal.

www.bushmaster.com/shopping/scopes/9349056-m.asp

www.dpmsinc.com/store/products/?prod=4768
4/13/2007 8:49:45 AM EDT
[#4]
Thanks guys....I have it up further the I should have now. I will check out the links.
4/14/2007 8:43:21 AM EDT
[#5]
Do these taller sight posts still stay below the front sight protector wings?
4/14/2007 10:22:59 AM EDT
[#6]
The taller posts are only .040 longer than a standard post.

If you have to get a front post that is taller than the ear of the FSB, you have something else wrong that just a short FSB.
4/14/2007 10:42:51 AM EDT
[#7]
^ Thanks.
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