Material: Music Spring Wire (SWP-A)
Origin: Japan
Package Contents :
· Hammer spring *1pcs
· Hammer sear spring *1pcs
· Auto sear spring *1pcs
· Magazine release spring *1pcs
· Bolt release spring *1pcs
· Fire pin lock spring *1pcs
· Trigger spring *1pcs
· Safety spring *1pcs
· Upper lock spring *1pcs
This spring set follows the same specifications as the factory setup, with no reinforced spring tension.