This Alexander Arms® 6.5 Grendel upper receiver is inspected by Alexander Arms® for proper dimensions. This product carries our standard one-year limited warranty against factory defects of the parts being sold. Warranty does not cover the final functionality of the rifle built with this receiver. Because of the advanced nature of firearms assembly and the possibility of physical harm to a user, it is expected that the assembler of this receiver has adequate technical knowledge of firearms assembly.
