Desert Tech is a Multi Barrel, Multi Caliber Switch Barrel Rifle System. DT SRS-A2 and the new DT SRS-M2. For the dedicated long range shooter this rifle system is AWESOME!!! Factory calibers .260, 6.5cm, 7mm, .308, .300wm and .338lm. Custom barrels are available in what ever caliber you could want! Call for information or come by and see this awesome rifle!!!