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AR556/300 Blackout

This is a discussion on AR556/300 Blackout within the Ruger Semi-Auto forums, part of the Rifle & Shotgun Forum category; Has anyone put a Radical Firearms 300 blackout upper on their AR556? How did it fit and did you use the AR556 BCG or buy ...


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Old March 20th, 2017, 02:09 PM   #1
 
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AR556/300 Blackout

Has anyone put a Radical Firearms 300 blackout upper on their AR556? How did it fit and did you use the AR556 BCG or buy another. Any problems?



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Old March 26th, 2017, 10:14 PM   #2
 
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No ever have done this, any type of 300 blackout upper?
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Old March 27th, 2017, 06:26 AM   #3
 
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They should fit fine, as long as both upper and lower are within spec. While 300 Blackout uses the same bolt and mags as 5.56, I wouldn't recommend swapping a BCG between the two uppers. Go ahead and get yourself a new BCG to go in your new upper.
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Old March 27th, 2017, 07:00 AM   #4
 
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Quote:
Originally Posted by rt4x4 View Post
No ever have done this, any type of 300 blackout upper?
Earlier this year I installed a CBC Industries 300 Blackout complete upper from Sportsman's guide on my Bushmaster lower. Fits perfectly and functions flawlessly. It's a 16" pistol gas system. You can use the same BCG and mags as for the 5.56. I went ahead and purchased a new BCG for it tho.

It shoots pretty well. These two groups were at 100 yards. The top group was first, then I gave the scope two clicks down for the second group. Nikon P-223 3x32 BDC.



I recommend this BCG from PSA. It's probably better than the Ruger AR556 BCG anyway.

http://palmettostatearmory.com/palme...roup-8779.html

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Old March 27th, 2017, 08:30 AM   #5
 
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I don't have a Ruger AR but I do have 3 different AR builds (2 are .223/5.56 one 300AAC). There's been times going to the range when I grab one of the .223's and the upper off the 300AAC to save space. All my uppers work fine mixed and matched with the different lowers. I just keep each BCG and charging handle with it's upper assembly.
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Old March 27th, 2017, 08:41 AM   #6
 
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Thanks!
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Old April 15th, 2017, 07:48 AM   #7
 
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I would like to see them offer their Take-Down in .300 BLK only...
as I have no ned or desire to buy anymore .223/5.56 ammo for the
rest of my life.

My 10-22 Take-Down is pretty cool, and as one who sold this AR-556
(and extras) before the bottom dropped out from underneath AR rifles
and continues
to do so.

The SR556 Take-Down appeals to me, but not@1,5000 with the 5.56
chambering, and another $400 for the .300 Blackout assembly.

The only other rifles that I would consider would be a CZ BREN 805
in .300 BLCK when they get to aking them, or the much cheaper, but
notquite made in stainless... Mini-14 .300 BlK.

I've had few Minis in .223 over the years, just like the .300 in the ARs
that I've shot.
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