PolyCase Ammunition's Inceptor RNP/ARX Combo features injection-molded copper-polymer bullets, loaded to tight specifications in high-quality brass cases. The RNP achieves reliability, pinpoint accuracy, and extreme performance through advanced technology and precision engineering. The non-expanding ARX is designed to be tough enough to penetrate soft targets and tissue, but when it encounters tougher barriers it is designed to break apart to reduce the risk for collateral damage due to over penetration.