Drilling an AR15 barrel for a FSB

[fullautomike]

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?

[TomG]

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

[fullautomike]

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!

[TomG]

Yes, the barrel is .750" where the sight base mounts.

Tom

[Mayhem]

Nice work - what is the orange puck-shaped thingy?

[fullautomike]

(04-03-2013, 11:19 PM)TomG Wrote: Yes, the barrel is .750" where the sight base mounts.

Tom

Do you want one?

[fullautomike]

(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.

[TomG]

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?

[aametalmaster]

Nice job...Bob