Striker Spring, M7 M9
Manufactured in the USA.
Shipping calculated at checkout.
Overview
Nucleus bolt action main striker spring. 25 lb spring is recommended to avoid light strikes.
To determine what spring your action has:
Actions shipped in February 2019 and later were assembled with a 25 lb spring installed.
Actions shipped in January 2019 were assembled with a 19 lb spring installed.
Actions shipped in 2018 were assembled with a 16 lb spring installed.
How to tell which spring you have
Short Action
Short action 16 lb: approximately 4.56" free length
Short action 19 lb: approximately 4.9" free length
Short action 25 lb: approximately 4.4" free length
wider spaced coils and will have a red color
Long Action
Long action 16 lb: approximately 6.12" free length
Long action 19 lb: approximately 6.51" free length
Long action 25 lb: approximately 5.79" free length,
wider spaced coils and will have a red color