The spring dedicated to the Feinwerkbau FWB65 / FWB80 / FWB90 system, was made in Poland according to the specifications of the Serwis Wiatrowy from high-quality Oteva wire.
The ends of the spring are planished, perfectly perpendicular and do not require any additional machining, they fit the manufacturer's original guide groove.
The individual installation of the Kratos Spring is associated with the need to control the initial speed of the shot, which depends not only on the spring, but also on the configuration of other elements of the system. In some cases, the spring may require additional correction of the number of coils (length) and reworking of the shortened spring end.
Usual time of handling varies between 3-5 business days.
High quality and effectiveness guaranteed!
*illustrative photo