Mauser M18 6.5 PRC 4+1 24.4", Black Barrel/Rec, Old School Camo Stock with Storage Compartment & Soft Grip Inlays The Mauser M18 provides a highly reliable and lightweight rifle design with excellent precision and great performance. It comes chambered in 6.5 PRC with a 24.4 inch barrel. Features include a synthetic stock, threaded barrel, Old School Camo finish, and a 5 round magazine. Removable recoil pad provides additional storage space inside the stock.