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<http://schema.org/about>
"Rainier Arms specializes in high-end AR15 parts, AR15 accessories, AR15 grips, AR15 stocks, AR15 uppers, AR15 lowers, AR15 barrels and much more..."
<https://www.rainierarms.com/catalog/category/view/id/149/f/manufacturer%3Aaccu-tac/f/manufacturer:erathr3/>