Spartan Precision Equipment Springbok Quad System Black. The innovative silicone body design allows rapid shooting position changes while the wide rear cradle and MagnaSwitch rifle quick detach system offer a vast lateral movement range for tracking targets. Perfect for active hunters in both woodland and open plains. Specifications for Spartan Precision Equipment Springbok Quad System: Manufacturer: Spartan Precision Equipment Color: Black Package Contents: Spartan Precision Equipment Springbok Quad System Spartan Precision Equipment SP03-032-R: Springbok Quad System Black