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10/1/2009 10:08:54 AM EDT
I need some info.  I bought a stripped barrel with the intention of putting a lo pro gas block and a midlength handguard on my first build.  I have steared away from that idea and now would like to put a FSB on that barrel.  Problem is, I have no idea what to look, for being a newb.  I have a Spikes M4 flatop upper if that makes any difference.   Do I need an "F" marked FSB?  Also the FSB works as your gas block as well correct?  Any ideas where to find a FSB online?

Thanks Alot!
10/1/2009 10:14:32 AM EDT
[#1]
Oh I also plan on putting either a Trijicon Tri-Power or an Eo-tech on for the optic.
10/1/2009 10:18:25 AM EDT
[#2]
Send it to Adco to have the FSB pinned.

Don't forget the barrel nut.
10/1/2009 10:24:51 AM EDT
[#3]
Check the Equipment Exchange (EE). I buy cheap(inexpensivve) parts all the time. It's an orange tab on the top/right of the page.
10/1/2009 12:02:13 PM EDT
[#4]
Is it hard to pin one yourself?  Dont mind doing the work at all.
10/1/2009 1:28:36 PM EDT
[#5]
Hard? Not at all. Hard to do correctly? Yes, especially without the equipment to align the FSB perfectly.
10/1/2009 5:13:32 PM EDT
[#6]
Send it to a pro with the right tools to get it on right.
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