what parameters define a heavy barrel

jonnyl said:

So, general consensus is this would be doubtful because of the slight step down in front of the gas block stop and the threads?? It's a WOA 18". I currently have one on a pre-10/1 lower, but had considered moving it to a new lower.

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Sling Blade said:

I would have to say that's GTG. It's not necked down under the handguard, nor does it have the M203 notch.

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platoonDaddy said:

WOA does advertise they have HBAR barrels, don't know if they are marked. Maybe that is an Engage thing.

Gunsmith in WI emailed me stating they build AR uppers using the Criterion HBAR.

Following is his reply, for sure his complete upper is cheaper than what I have been seeing in MD for just a new HBAR barrel.

They vary in cost depending on the components used. I prefer to use Midwest Industries upper receivers and free float tubes.

Average cost for a 16" upper w/ BCG is usually $875.00 and, the average cost of an 18" is only $20.00 more.

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Pinecone said:

Anderson Rifles has their 16" M4 upper for $594. But they do have an HBAR barrel, and they will make it with the HBAR for the difference in cost of the barrels (about $50). So under $640. Just call them.

And my last upper from them was ordered on Sunday evening, was assembled, headspace checked, test fired, and shipping Monday afternoon. Arrived on Wednesday.

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Pinecone said:

http://www.andersonrifles.com/product/16-hbar-barrel-threaded-12-28-for-flash-hider/

20" - http://www.andersonrifles.com/product/20-hbar-barrel-1-9-twist-2/

My 16" upper is a .300 Blackout, which has to be HBAR due to the bore size.

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Ogilvy said:

Is the .300 Blackout Barrel you have from them marked HBAR? The website shows M4 contour.

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sonicnofadz said:

how about a stainless bull barrel that has been spiral fluted?

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platoonDaddy said:

Just purchased a complete Colt 16" Upper AR6721 for $600 from ratworx. there is now one left.

https://www.ratworxusa.com/?q=node/224

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Or you could have went to Shooter's discount and bought a whole rifle for about $200 more.

Pinecone said:

It SAYS M4 contour, but look at the picture, obviously heavy barrel.

I called them and it is heavy barrel, ad is wrong. They were supposed to change it, but I guess they forgot.

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TacticalSasquach said:

Sooo....basically all you need is a stamp set to make any barrel "hbar" even a 16 incher ???

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It's length isn't the determining factor. It's the contour. Basically it just can't be necked down anywhere.

If yours fits that description, then stamp 'em if ya got 'em.

TacticalSasquach said:

Sooo....basically all you need is a stamp set to make any barrel "hbar" even a 16 incher ???

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