The Doublestar Corp. OOPS!
- Part Type: Detent & Spring Replacement Kit
- Compatible Firearms: AR-15 Lower Receivers
- Material: Steel & Stainless Steel
- Finish: Standard
- Installation: Drop-In (punch set recommended)
- Includes: Bolt Catch Detent & Spring, Takedown Pin Detent & Spring, Pivot Pin Detent & Spring, Selector Detent & Spring
