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8/28/2007 7:20:36 PM EDT
I was under the impression that this was a fairly easy process, but I've been reading some things that make it seem like a bitch. I've removed and replaced front sight bases plenty, but I've never swapped one. The issue is that I have a fsb with no bayo lug and would like to swap it for one that does have one. So how involved is this? Just buy a new fsb and put it on like I'm putting on the old one? Thanks.

Bill
8/28/2007 8:13:24 PM EDT
[#1]
Since you've removed FSB's before, you may know how difficult it can be.

The other issue you may have is that the two holes in the new FSB may not line up exactly with the holes in the barrel.  Even from the same manufacturer, the holes are not drilled in the same spot every time.  I've owned 3 Bushmaster barrels and none of them could share the same FSB without re-drilling the holes in the barrel.
8/29/2007 1:40:55 AM EDT
[#2]
As M4-guy said, the big issue is that the holes are drilled after assembly, and there is no standard position, so it's luck of the draw to swap two drilled FSBs, and an annoying procedure to drill a new FSB to fit existing holes.
8/29/2007 3:12:36 AM EDT
[#3]
ADCO, was offering the serivc to install a FSB w/ bayo lug on your barrel.  

I am guessing that if youhave the ability to index off the front of the barrel to the centers of the cuts in the barrel you could get a non drilled FSB and mount a non drilled fsb.
8/29/2007 3:24:09 AM EDT
[#4]

Quoted:
ADCO, was offering the serivc to install a FSB w/ bayo lug on your barrel.  

I am guessing that if youhave the ability to index off the front of the barrel to the centers of the cuts in the barrel you could get a non drilled FSB and mount a non drilled fsb.


IIRC Adco charges abour $85 for the service, and I believe I saw Steve joke that that is to encourage people to just buy a new barrel and get it over with  It seems that no one likes to do it.
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