Aero Precision

Did you launch a detent and spring across the garage during your build and now you can't find it? Our 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 - Includes: - 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) - 4-40 Set Screw (for threaded takedown pin detent hole) (2)