AR10 uppers different calibers

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2 years 9 months ago #48116 by admiral1960
Hi all,

New to the forum.

I have an Armalite AR10 .308.

Do they make an upper for the AR10 in .223 / 5.56 ?

thanks for a response !!

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2 years 9 months ago #48117 by The Wizard
I kinda sorta understand your reasoning but putting a 5.56 upper on a AR-10 lower would run into dimensional problems.

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2 years 2 months ago #48123 by jtallen83

Hi all,

New to the forum.

I have an Armalite AR10 .308.

Do they make an upper for the AR10 in .223 / 5.56 ?

thanks for a response !!
You are looking for a Colt 901, has an adapter so an AR-15 upper can be run on the 308 lower.

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