Product Description
Product Features & Specifications Stern Defense 004SDBU9NIBECHOD2M 9mm NIB/Mag Phosphate Hybrid 8620 Steel AR15/M16 Made with 8620 AISI steel and boasting a NIB/Mag-phosphate finish, the Stern bolt fits into Mil-Spec and Glock-pattern upper receivers.It functions with Colt SMG, Glock magazines a