A 9mm AR upper build in the AR9 family covers a range of finish and handguard options, including black-anodized uppers with 12″ slant KeyMod or M-Lok handguards and 15″ window M-Lok configurations. Each uses a 9mm-specific blowback barrel and bolt, and installs on any AR-15 lower set up for 9mm magazines.

ar9 upper

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