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AR-308 Lower Parts Kits at Primary Arms
Primary Arms offers AR 308 & AR 10 lower parts and lower part kits made by the most reliable brands, such as Aero Precision, Expo Arms, SB Tactical, Radical Firearms, and more. Find our vast selection of Grips, Lower Parts and Kits, Lower Receivers, Pistol Arm Braces, Stock Components with fast shipping, and industry-leading customer service. Learn more about .308 lower parts compatibility here.