The Tiger Rock Inc. WHOOPSKIT 223/5.56 Rifle Oops Parts Kit is an essential resource for resolving any missing components during your firearm maintenance. This meticulously curated kit features crucial parts such as the AR-15 Bolt Catch's Spring, Roll-pin, and Plunger, alongside buffer tube detents, springs, and various detent pins. Engineered for convenience and functionality, the WHOOPSKIT guarantees your rifle remains operational without the hassle of misplaced pieces. Ideal for both enthusiasts and professionals, this comprehensive kit prepares you for confident outings. Includes AR-15 Bolt Catch's Spring, Roll-pin & Plunger Features 223 308 Buffer Tube Detent Plunger & Retainer Spring AR-15 Disconnector Spring included Magazine Catch Spring for optimal performance Takedown Pin Detent and Pivot Pin Detent for reliability Takedown Pin Spring and Pivot Pin Spring Comprehensive Safety Spring and Detent pin Keep your firearm in peak condition with the WHOOPSKIT, ensuring smooth performance every time.