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7/13/2008 6:44:44 AM EDT
I plan an putting a FF on my 16" M4 Carbine.  I'm planning to go with a rifle length rail so I am going to cut down the FSB.  My question is, what rails will NOT fit over the cut FSB.  I looked through many pages of the M4 picture thread and could not find what I was looking for.

Thanks,

Jim
7/13/2008 6:53:44 AM EDT
[#1]
I would think most all the current FF HG’s out on the market would fit over a cut-down FSB. The nice thing with the cut-down FSB is you can taper and shape it as you wish.
7/13/2008 7:15:40 AM EDT
[#2]
I think pretty much all FFHGs will clear the cut down FSB. Like Quib said, by cutting the FSB down, you can custom mold it to a certain look. I KNOW there's a topic about cutting down a FSB. Had pics and everything... Any body got that link? It'll probably help a great bit...
7/13/2008 7:19:28 AM EDT
[#3]

Quoted:
I KNOW there's a topic about cutting down a FSB. Had pics and everything... Any body got that link? It'll probably help a great bit...


www.ar15.com/forums/topic.html?b=3&f=4&t=226782
7/13/2008 7:37:13 AM EDT
[#4]
Thanks guys, you're the bestest.....

7/13/2008 9:28:26 AM EDT
[#5]
Glad to be of some help.  
7/13/2008 9:55:01 AM EDT
[#6]
Buy a LaRue rail, grind down FSB until it fits
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