CZ Rifle Magazine 243 Win/308 Win 10 rd. Fits 557 Lightweight steel construction;Numbered witness holes for round count visibility;Steel wire spring for reliable feeding;Injection-molded polymer follower;Durable polymer floor plate;10-round capacity;Fits CZ 557 model;Compatible with .243 Winchester and .308 Winchester;Engineered for smooth and consistent feedingtable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Item Category Code: 7600 Product Group Code: 7600H Product Sub Group 1: 7600H2 Inactive: No