The American Built Arms AR Essentials Kit collects the small bolt and bolt carrier parts that wear out first on an AR-15. Keep it in a range bag or parts drawer so a broken extractor, worn gas rings or a tired ejector spring never ends a training day. Every part is sized for 5.56mm AR-15 bolts.
- Fits: AR-15, 5.56mm
- Nickel-boron coated cam pin
- Chrome firing pin and firing pin retaining pin
- Ejector, ejector spring and pin
- Extractor with attached spring, extractor spring with insert, and extractor axle
- Gas rings
