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+--- Thread: Drilling an AR15 barrel for a FSB (/thread-1282.html)
Drilling an AR15 barrel for a FSB - fullautomike - 04-03-2013
This was my last project, drilling an AR15 barrel for an "old school" front sight base. The job is made 100% easier with the Jig I got. I centered the barrel and jig, drilled, then reamed for the taper pins. I reamed by hand this time, but will do under power next time, what do you think?
![[Image: IMAG2644_zpsb6d3eaf1.jpg]](http://i204.photobucket.com/albums/bb28/mike-sid/Android%20II/IMAG2644_zpsb6d3eaf1.jpg)
![[Image: IMAG2648_zps0b113d4b.jpg]](http://i204.photobucket.com/albums/bb28/mike-sid/Android%20II/IMAG2648_zps0b113d4b.jpg)
![[Image: IMAG2650_zpsf1101795.jpg]](http://i204.photobucket.com/albums/bb28/mike-sid/Android%20II/IMAG2650_zpsf1101795.jpg)
![[Image: IMAG2652_zps580b7504.jpg]](http://i204.photobucket.com/albums/bb28/mike-sid/Android%20II/IMAG2652_zps580b7504.jpg)
![[Image: IMAG2653_zpsfeb47f4f.jpg]](http://i204.photobucket.com/albums/bb28/mike-sid/Android%20II/IMAG2653_zpsfeb47f4f.jpg)
RE: Drilling an AR15 barrel for a FSB - TomG - 04-03-2013
Good job Mike.
I need one of those sight bases for mine but AR15 stuff is so ridiculously priced now that I may have to make it myself.
So...is it?
Tom
RE: Drilling an AR15 barrel for a FSB - fullautomike - 04-03-2013
I got some that are already drilled, you would have to drill the barrel to match the existing holes in the FSB. What is your barrel diameter at the FSB? .750" ?
The problem is not so much the cost, it is more so that nothing is available! most do not have any stock to even try to over charge for!
RE: Drilling an AR15 barrel for a FSB - TomG - 04-03-2013
Yes, the barrel is .750" where the sight base mounts.
Tom
RE: Drilling an AR15 barrel for a FSB - Mayhem - 04-04-2013
Nice work - what is the orange puck-shaped thingy?
RE: Drilling an AR15 barrel for a FSB - fullautomike - 04-04-2013
(04-03-2013, 11:19 PM)TomG Wrote: Yes, the barrel is .750" where the sight base mounts.
Tom
Do you want one?
RE: Drilling an AR15 barrel for a FSB - fullautomike - 04-04-2013
(04-04-2013, 06:30 AM)Mayhem Wrote: Nice work - what is the orange puck-shaped thingy?
It is cut out for the front sight base to allow you to either tap in or tap out the taper pins.
RE: Drilling an AR15 barrel for a FSB - TomG - 04-04-2013
You had better hold on to it Mike, you know what they say about a bird in the hand. I looked around a bit and situation is not as bad as I thought. It looks like Bravo has them in stock for $30.
Thanks,
Tom
(04-04-2013, 07:09 AM)fullautomike Wrote:(04-03-2013, 11:19 PM)TomG Wrote: Yes, the barrel is .750" where the sight base mounts.
Tom
Do you want one?
RE: Drilling an AR15 barrel for a FSB - aametalmaster - 04-06-2013
Nice job...Bob