The straight butt is made of molded polypropylene with fiberglass reinforcement. The famous Italian fashion house Giugiaro Design is responsible for its modern design.
The pistol grip of the butt is provided with hand filling on both sides and with a back cap that allows the adjustment of the length of the butt by means of shims.
Sako Quad Synthetic is a class 4 bouncer. The weapon can be easily changed between cal 22 LR, 17 Mach 2, 22 WMR and 17 HMR thanks to SAKO's patented barrel/magazine change mechanism (tool included).