Spring mp-53, Izh-53 with perfectly selected parameters and wire diameter, which allows to achieve maximum effect, upgrade detail made to order. This tuned spring allows update indicators and improve characteristics, also she has a durable silver coating.
The proposed spring is ideal for all models IZH-53, MP-53, MP-53M. Advanced spring is installed instead of the standard one and improves the parameters and related characteristics.
The package delivery includes an updated modern spring.