The Rugged SurgeX is a modular 7.62mm suppressor built to give you flexibility without sacrificing durability. Its ADAPT modular design lets you run it in a short 5.6" configuration to help reduce gas blowback or a longer 8.1" setup for maximum suppression. It is belt-fed rated and built from 17-4 stainless steel and Cobalt 6 for serious strength. With universal 1.375x24 HUB threads, it works with a wide range of mounts and includes the new Rugged Stainless RUM. The 1.55" diameter keeps it streamlined, while minimal zero shift helps maintain accuracy. Finished in high-temp Cerakote, it is rated up to .300 RUM. Belt-fed rated! ADAPT Modular Technology Length Short 5.6" / Long 8.1" Weight Short 11.7 oz / Long 16.2 oz Diameter 1.55" Materials 17-4 Stainless Steel; Cobalt 6 Finish High-Temp Cerakote Caliber 7.62mm rated to .300 RUM