Did you launch a detent and spring across the garage during your build and now you can’t find it? Aero’s 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.

Features :

• Takedown 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)