GAS upgrade set for spring powered sniper rifle Dragunov SVD [A&K]. Rebuild install it manually (spring powered) version of the popular and widespread weapons on GAS weapon which then using 12g CO2 cartridges. The Precision dimensions and perfect tightening of the set in combination with a high pressure of CO2 offers performance higher than 250 m/s. Another significant advantage is simple and fast loading without much resistance. The package includes all necessary components like cylinder with space for cartridge, cylinder head, nozzle recoil spring and spring guide with the base. All parts are made from CNC stainless steel, brass or high-strength aluminum.