CZ(R) CZ 557 Magazine is a 10-round magazine designed for compatible CZ 557 rifles chambered in .308 Win and .243 Win. The magazine features durable steel construction with a blued finish and is designed for proper fit and dependable feeding in compatible CZ 557 rifle configurations.Key Features 10-round magazine capacity Designed for compatible CZ 557 rifles Compatible with .308 Win and .243 Win Durable steel construction Blued finishCZ(R) manufactures firearms magazines and firearm accessories for sporting recreational and professional applications. The brand is known for producing components designed around its established firearm platforms. CZ products emphasize durable construction compatibility and dependable function.