MPN: APRH101627


  • Fits all standard lower receivers
  • Features the most commonly lost parts
  • High quality with competitive pricing


  • AR-15, AR-10, M4E1 and M5


  • 2x Bolt Catch Roll Pin
  • 2x Buffer Retainer
  • 2x Buffer Retainer Spring
  • 2x Safety Selector Detent
  • 2x Safety Selector Detent Spring
  • 4x Pivot/Takedown Pin Detent
  • 4x Pivot/Takedown Pin Detent Spring
  • 2x Trigger/Hammer Pin
  • 2x Disconnector Spring
  • 2x 4-40 Set Screw (for threaded takedown in detent hole)


The Aero Precision oops kit is a necessity for the shooting bag of all AR15 owners who want to take their preparedness to the next level.

The Aero Precision Oops Kit Comes In Handy At The Shooting Range

This AR oops kit includes parts that are commonly broken or misplaced. Next time you are at the range and you experience a break, by having this kit in your shooting bag, you can be back to practicing in minutes.

The Aero Precision Oops Kit Is Useful At Home

When you are cleaning your AR-15 at home after getting in some range time, if you lose a piece you will be able to reassemble your weapon immediately. This helps you achieve optimal defense readiness and allows you to search for the missing part when time permits.

Should you be building an AR15, this kit is also great to have available; you never know when you might need an extra part.

What AR-15s Are Compatible With This AR Oops Kit?

Aero Precision manufactured this kit for the .300 Blackout and the 5.56x45mm AR15. The parts included in the kit are also compatible for M5 and M4E1 builds.

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Reviews (22)


    Posted by Scott on 1st Mar 2022

    Great product at a great price and super fast shipping1

  • Aero Precision Oops Kit

    Posted by Ryan Hensley on 1st Apr 2021

    Great stuff. Well made. Fast shipping.

  • You cant go wrong with aero precision

    Posted by Carlos Gaxiola on 28th Mar 2021

    Aero precision doesnt disappoint

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