question regarding buildout of AR lower

fuelfather

Well-Known
Feb 2, 2009
1,294
38
San Antonio
I am trying to find out if anybody knows the facts regarding building out an AR lower stamped 5.56....i am wanting to know if i can still buy an upper of a different caliber or if it can only ever be 5.56....thank you in advance for any info:1zhelp:
 

Texas1911

TGT Addict
May 29, 2017
10,623
38
Austin, TX
You can buy an upper in any caliber. The lower is just stamped that since it is designed to be used with .223 Rem / 5.56 NATO; hence it will not work with a .308 Win upper.

When you buy an upper, buy a 5.56 NATO upper so that you have a NATO chamber. Other options are 6.5 Grendel, 6.8 SPC, .204 Ruger, .50 Beowulf, .458 SOCOM, etc.
 

fuelfather

Well-Known
Feb 2, 2009
1,294
38
San Antonio
ok...thank you...i have been looking at uppers and would love the idea of putting a 50cal upper on her for when the zombies learn how to drive
 

Texas1911

TGT Addict
May 29, 2017
10,623
38
Austin, TX
ok...thank you...i have been looking at uppers and would love the idea of putting a 50cal upper on her for when the zombies learn how to drive
Go for it.
 

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