Aero Precision AR-15, LR-308 Fix-It Kit

Did you launch a detent and spring across the garage during your build and now you can't find it? Aero Precision AR-15, LR-308 Fix-It Kit gets you the most commonly lost parts to finish your build. All parts in the Fix-It kit are compatible with AR15, M4E1 and M5 builds Kit IncludesTakedown Pin Detent (4)Takedown Pin Spring (4)Bolt Catch Roll Pin (2)Trigger/Hammer Pin (2)Safety Selector Spring (2)Safety Selector Detent (2)Buffer Retainer (2)Buffer Retainer Spring (2)Disconnector Spring (2)4-40 S