Add a reliable spare-magazine option to your setup with the Thompson Center Arms Llc Tca 4100r Magazine Venture 7mmrm/300wm featuring 3-round capacity in 7mm/300WM. It features Steel construction.It is a straightforward choice for replacing a worn magazine or keeping an additional magazine available for range training or field use.Caliber: 7mm/300WMCapacity: 3 roundsMaterial: Steel