Question: Barrel adaptor with 1/2X28 threads

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[ARCHIVED THREAD] - Question: Barrel adaptor with 1/2X28 threads

Posted: 6/4/2001 10:03:03 AM EDT

Is it legal to use an adaptor, that has the standard AR thread pattern, that goes on with 4 set screws? I was told that, since the barrel isn't threaded, such a barrel adaptor doesn't need to be welded. Is this true?

this is an adaptor that slips over the end of .710" barrel ends, and is secured with 4 set screws, and has the 1/2 X 28 thread pattern.

Thanks!

Posted: 6/4/2001 12:14:00 PM EDT

[#1]

I don't know about the legality of a set-screw adaptor, but if you add a flash suppressor or grenade launcher to the adaptor, you are in trouble if you have 2 or more evil features on a post-ban SAW.

Posted: 6/4/2001 12:33:50 PM EDT

[#2]

No flash suppressor or grenade launcher. I am putting on a compensator that you can ONLY get in the threaded version. No set screw versions for it.

Posted: 6/4/2001 2:46:02 PM EDT

[#3]

You'd have to somehow cover the threads before you could attach the adapter to your barrel.

Attaching the adaptor is the same as threading the end of your barrel...

Now, it would be OK to permanently attach the 1/2x28 muzzle device to your adapter, and you could then install the slipon adapter/brake combo on your barrel with the set screws.

Posted: 6/4/2001 2:51:25 PM EDT

[#4]

I searched far and wide for one of these devices last year.

This would allow someone with a pre-ban lower to attach a post ban upper with the groove (Olympic Arms) and then legally thread a flash suppressor on to the end.

Would have been nice but I'm afraid that such a device would be too tempting and [b]FAR TOO EVIL[/b] for the subject of this former republic... darn, up there on the soap box again aren't I?

Posted: 6/5/2001 5:53:52 AM EDT

[#5]

So, is this going to be a problem on my post-ban rifle?

Posted: 6/5/2001 6:12:03 AM EDT

[#6]

Quoted:
So, is this going to be a problem on my post-ban rifle?

View Quote

Yes, it's the same as threading your barrel. You need to permanently attach the 1/2x28 device to the adapter to be legal for installing on your post-ban barrel, and the muzzle device itself needs to be post-ban compliant (not a flash hider, and not 22mm in diameter).

Posted: 6/5/2001 6:59:35 AM EDT

[#7]

*pouting*

Okay. [:|]

[ARCHIVED THREAD] - Question: Barrel adaptor with 1/2X28 threads

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