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can I use regular. 308 or 762x51? or does it have to be m118lr? I'm still learning sorry if this is a dumb question. — 1 Answer

by calgunner, from CA, United States Asked on January 15, 2022

Name Criterion Barrels AR-10 Rifle Length Gas System Barrel (4.1)
As Low As $337.24 Save Up to $19.50
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Answered by Ethan, Gear Expert, from IL, United States, on January 18, 2022

The Criterion Barrels AR-10 barrels that are chambered in .308 can use .308 or 7.62x51, . 308 is actually a bit higher chamber pressure than 7.62x51, so the 7.62 is safe from a . 308 but not necessarily the other way around.

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