Replace that 60 plus year old firing pin spring with this custom wound Mosin Nagant firing pin spring. The “Strike Force” spring was developed in a joint venture between the owner of www.socamo.com and C&R spring company LLC to the create a spring that helps improve the functionality of your Mosin Nagant. Each spring is made using high quality stainless steel then heat set and load tested to insure each spring provides consistent performance. This new spring is designed to decrease lock time and to improve bolt cycling and trigger function. The spring has been “passivated” to insure rust and corrosion resistance. Will work on all variants of the Mosin Nagant. Recommended for commercial loaded ammo and reloads. PLEASE NOTE THE FIRING PIN IS FOR DISPLAY PURPOSES ONLY IT IS NOT INCLUDED WITH THE SPRING.