RHINO REVOLVER 30DS SAR (CALIFORNIA LEGAL) (NICKEL PLATED) 357MAG/3″BBL is an AR-15 chambered in the powerful and popular .357 Magnum cartridge. It is a lower receiver built on the standard AR-15 platform which allows you to build an AR-15 without the need for an upper receiver. This means that it can be used on its own or with an upper receiver of your choice. Email: chiapparhinostore@gmail.com Phone: +1(213) 537-5785