Sako Sako Hunter 300 Win Mag Bolt-Action Rifle with Tungsten Gray Cerakote Receiver for sale. The new Sako S20 is the first true hybrid rifle, the one that both hunters and precision shooters can embrace. It’s designed for passionate shooters who want to take and stay in control in every situation. The modular structure adapts to changing lifestyles, making S20 a truly future-proof bolt action rifle.