ANDERSON MANUFACTURING “WHOOPS!” KIT – AR PLATFORM ESSENTIAL SPARE SPRINGS & DETENTS
The Anderson Manufacturing “Whoops!” Kit is the must-have spare parts kit for any AR builder or armorer. This kit contains the most commonly lost or worn springs, detents, and pins required for AR assembly, maintenance, or repair. Perfect for anyone who installs, upgrades, or services AR platform rifles—be ready for any “whoops!” moment in your next build.
- 🔧 Essential Spares: Covers the most commonly lost or worn AR-15 small parts
- 📦 Kit Includes:
- Bolt Catch Detent & Spring
- Bolt Catch Pin (3/32″ x 1/2″), Coiled Pin
- Buffer Detent & Buffer Detent Spring
- Disconnect Spring
- Magazine Catch Spring
- Safety Selector Detent & Spring
- Take Down Pivot Pin Detent (2 per rifle) & Springs (2 per rifle)
- Hammer Spring (mil-spec)
- 1/8 x 5/8 Coiled Roll Pin for Trigger Guard
- Trigger and Hammer Pin (2 per rifle)
- Trigger Spring (single stage mil-spec)
- 🛠 Quality: Mil-spec components from Anderson Manufacturing
- 🔄 Universal: Compatible with AR-15, M4, and similar AR platform builds
Note: Small parts kit—no major components included. Perfect for build benches and field repair kits.




