CZ(R) single shot adapter is designed for compatible CZ 452 453 455 512 and 513 rimfire rifles. The adapter supports .22 LR and .17 HM2 applications and replaces a detachable magazine when single-round loading is desired. It features black polymer construction and a one-round loading configuration.Key Features Designed for compatible CZ 452 453 455 512 and 513 rifles Compatible with .22 LR and .17 HM2 ammunition Single-shot loading configuration Fits in place of a detachable magazine Black polymer constructionCZ(R) provides firearms components and factory accessories for sporting recreational and professional applications. The company offers accessories engineered for compatibility with supported firearm platforms. CZ products emphasize functional design durable construction and consistent manufacturing standards.