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U.S. Arms Company manufactures top quality AR-15 receivers to complete your build. We are “Home of the World’s Tightest Receivers”, providing you with the tightest receiver fit on the market. At USAC we work to create accurate firearms that stand the test of time.

Choose from a variety of colors and finishes to set your AR-15 apart from the crowd. Create your custom AR-15 from our upper receivers, lower receivers, and receiver builder sets today.