Swap 300 blackout to 223/556 AR? Just a Barrel needed?

TheRedStar47

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If I wanted to turn a 300 blackout AR15 into a 223/556. Besides maybe a gas piston tube. Would all I need to do is swap out the barrel?
 
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There are piston ARs


I'm well aware of that. Given the complete lack of details in his post, you can't assume he has a piston upper at all.

His edit makes it sound like he's probably talking about the gas tube, but his terminology is off.
 
What "gas piston" are you referring to?

From what I have read online regarding different barrel lengths that you have to change the piston tube. Am not well versed in the AR platform. I've been shooting pistols for the last 10 yrs.

I figured there has to be a few members that have to swap overs. Just want to know if I have to make whole lots changes or if its straight forward barrel swap

223/556 ammo prices and availability is why am interested in that caliber instead of the 300 blackout. It's a nice setup buddy has but I'd like to use it as my main rifle to practice with before getting into more complicated AR builds. 300 blackout seems too expensive.
 
From what I have read online regarding different barrel lengths that you have to change the piston tube. Am not well versed in the AR platform. I've been shooting pistols for the last 10 yrs.

223/556 ammo prices and availability is why am interested in that caliber instead of the 300 blackout. It's a nice setup buddy has but I'd like to use it as my main rifle to practice with before getting into more complicated AR builds. 300 blackout seems too expensive.

"Gas tube", not "piston tube".

Depending on the gas system length and gas block journal diameter of the .223 barrel, you may or may not need to replace the gas tube and/or gas block.
 
"Gas tube", not "piston tube".

Depending on the gas system length and gas block journal diameter of the .223 barrel, you may or may not need to replace the gas tube and/or gas block.

So typically the barrel swap is the main component to change? The orginal bolt carrier group would be fine?
 
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