Colt AR15/M4 Ejection Port Cover Assembly

Genuine Colt AR-15 Ejection Port Cover, part number SP64532. This is the ejection port cover (dust cover door) only — it does not include the hinge pin (rod), spring, or C-clip retainer.

Designed for standard AR-15, M4, and M16 upper receivers, this Colt factory cover provides a precise fit and reliable protection against dirt, dust, and debris when closed. Ideal as a direct replacement or spare part for builders and armorers who already have the spring and pin assembly.

Key Specifications & Features

• Manufacturer: Colt
• Part Number: SP64532
• Type: Ejection Port Cover (Dust Cover Door) only
• Does not include hinge pin, spring, or C-clip
• Compatible with AR-15 / M4 / M16 pattern upper receivers
• Factory Colt quality
• Black finish

Perfect for replacing a damaged or worn ejection port cover while retaining your existing spring and pin components.