Gas block roll pin question

[RogueSniper]

I slightly taper one end of the roll pin using my vise - very very slight taper, you almost can't see the tapering. It helps to get that roll pin past the off centered tube or block. Use the proper sized roll pin punch. I bought a set from Brownell and use it every time. I also stick a clothing pin through the roll pin from the other side to line up the roll pin in order to get it straight.

[Nathan Krynn]

You're supposed to pin the tube to gas block always anyway

I am talking about taper pinning the block to the barrel bud.

[LBDamned]

I am talking about taper pinning the block to the barrel bud.

but the OP has an issue with the tube to the block... does pinning the block to the barrel help that?

[Nathan Krynn]

Nope, I just didn't read the whole thing.

[ScottsBad]

I have run into this with Syrac, JP, SLR, Troy, MI and PRI gas blocks and I would not call any of those "crummy"...

It's usually the gas tube with the misalignment.

If they didn't line up I would modify the gas tube with a dremel before putting a drill through the gas block pin hole.

[MikeA04]

I went down to rifle gear and got a few more roll pins. Plus I have a set of roll pin punches on the way from Amazon.
I really appreciate all the info guys, this is my second AR but my first ground up build so I am very inexperienced (lots of you tube videos)

[MikeA04]

Get a new roll pin, make sure everything is lined up and put some steak on it. It should be at least even with the GB to ensure the best chance that the pin will not work out.

I know AR15barrels is an expert, but I wouldn't drill the GB. If your GB is so crummy that the holes don't line up then you should find a better quality GB.

It is a radical arms gas block and the top pin came with the melonited gas tube

[MikeA04]

That's wicked looking barrel your there. What is it?

It's an AR Stoner 18in. 223 wylde chambering

[LBDamned]

I went down to rifle gear and got a few more roll pins. Plus I have a set of roll pin punches on the way from Amazon.
I really appreciate all the info guys, this is my second AR but my first ground up build so I am very inexperienced (lots of you tube videos)

Good call on the roll pin punches... You will appreciate those more than you think... Save the thread for prosperity

[ar15barrels]

If they didn't line up I would modify the gas tube with a dremel before putting a drill through the gas block pin hole.

Do whatever works best for you.
I do this for a living so I do what works best for me.

[ScottsBad]

Do whatever works best for you.
I do this for a living so I do what works best for me.

As I said, you are the expert. I just wouldn't tell a home gun builder to run a drill through for obvious reasons.