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Monmouth USA teamed with two very strong barrel manufacturers to offer the finest AR barrels on the market. Both Ballistic Advantage and Faxon Barrels are manufactured in the U.S.A by hardworking men passionate about barrel-making. We stock a huge selection of AR Barrels ready to ship right away; trust Monmouth USA has you covered! If you need assistance selecting the best AR Barrel for your custom AR build read this article or contact us, we’re here to help; email us at firstname.lastname@example.org. We will not be undersold; find a better price, email us.