Lockhart Tactical Raven 9 Buffer Retainer Spring.
Fits: (9mm) (10mm) (.40S&W) (.45AUTO) (.223) (5.56) (7.62x39) (.22LR) (.410GA)
All Mil-Spec lowers
All Mil-Spec buffer retainers
Includes:
Raven Buffer Retaininer Spring
Specs:
Mil-spec
Ready to drop in and go