Newbie barrel threading question

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Chubu
New Member
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Joined: Wed Jul 15, 2020 9:25 pm

Newbie barrel threading question

Post by Chubu »

Hello all - first post.
I bought a stag arms 8" ar pistol in blk recently. It seems the barrel threading is 1/2x28. It had an a2 and I replaced it with a 1/2x28 jp flash hider.
Now I read that this threading is rare on a blackout and that 1/2x28 is generally for 5.56 and that these devices might be dangerous with blackout pressure - especially supersonic.
Is this true or do I just not understand?
I have a kx3 on order - also in 5.56 1/2x28...
Last edited by Chubu on Wed Jul 15, 2020 10:28 pm, edited 1 time in total.
20X11
Silent But Deadly
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Location: Aurora, CO

Re: Newbie barrel threading question

Post by 20X11 »

As long as your muzzle device has a hole larger than .308 for the bullet to pass through, you are fine.
Chubu
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Joined: Wed Jul 15, 2020 9:25 pm

Re: Newbie barrel threading question

Post by Chubu »

Thanks for the reply .

Is it as easy as getting a 1/2 to 5/8 adapter and buying a new appropriately sized muzzle device? Any downsides?

Why did stag use this threading anyway?
20X11
Silent But Deadly
Posts: 1559
Joined: Fri Aug 03, 2012 11:43 pm
Location: Aurora, CO

Re: Newbie barrel threading question

Post by 20X11 »

Thread pattern isn't important, bore size is. You need a .308 muzzle device threaded to match your barrels thread pattern. I would not use an adapter.
Chubu
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Re: Newbie barrel threading question

Post by Chubu »

What is the issue with adapters?
20X11
Silent But Deadly
Posts: 1559
Joined: Fri Aug 03, 2012 11:43 pm
Location: Aurora, CO

Re: Newbie barrel threading question

Post by 20X11 »

Mostly alignment...weight...changes to barrel harmonics...another set of threads to come loose...where would you like me to stop?
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