This is a replacement spring for the 4390 Ejection Port Door Assembly. The spring is one of the small parts that make up the ejection port door, and this one lets you replace it without buying the full door. It is sold on its own as a single replacement part. Nothing complicated, just the spring you need.
This product is the spring only for the ejection port door. The door, rod, and spring work together as the parts that make up the dust cover. Of those three pieces, the spring is one of the easiest to lose or wear out. Buying the spring on its own keeps the replacement simple and focused on the one part needed.
This spring is compatible with the 4390 Ejection Port Door Assembly. It is matched to that specific ejection port door rather than sold as a universal part. Owners with a different ejection port door should confirm the correct spring for their part. Keeping the spring matched to the 4390 door keeps the purchase straightforward.
Follow safe handling and manufacturer instructions.
Ensure compliance with all applicable federal, state, and local laws.
Verify compatibility with your ejection port door before use.
Inspect all components before use.
Product: Spring for 4390 Ejection Port Door Assembly
Check out our Shipping and Processing Times Check out our Warranty/Returns and Terms and Conditions Check out our State Restrictions page
