- Contains Springs That Are Commonly Used Or Sprung Across The Room/Field.
- Includes: Firing Pin Retaining Pin X 2, Extractor Spring Assembly X 2, Detent Selector X 2, Selector Spring / Ejector Spring X 2, Buffer Detent X 2, Buffer Detent Spring X 2, Detent Spring X 4, Take Down Detent X 4, Extractor O-Rings X 2.