Lower Receivers - Black

Build your custom AR-15 with a black lower receiver from AT3’s extensive selection. The lower houses the trigger assembly and is legally classified as a firearm. Our inventory includes mil-spec and premium billet black lowers from trusted brands. Simply choose your preferred option and we’ll ship it promptly to your READ MORE

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Build your custom AR-15 with a black lower receiver from AT3’s extensive selection. The lower houses the trigger assembly and is legally classified as a firearm. Our inventory includes mil-spec and premium billet black lowers from trusted brands. Simply choose your preferred option and we’ll ship it promptly to your local FFL dealer. Browse our black lower receivers and complete your black rifle build today!

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