GRS, Gas Ram System, this technology consists in a pneumatic cylinder that is replacing the spring, enabling the shooter having more terminal velocity, less vibration, more consistent power, and a constant and smooth cocking effort.

• NTX 10 GRS Comando
• NTX 10 GRS
• Dead Eye GRS
• Spider GRS Carbon
• Spider GRS Camo
• Spider GRS
• Hawk GRS
• Verteks GRS
• Thor GRS

https://noricaairguns.com/en/categoria-producto/air-rifles-en/grs-en/