The Luth-AR UR-05AA1 A1 Ejection Port Cover Assembly is a straightforward replacement kit for standard AR-15 pattern uppers chambered in 223/5.56mm. This steel dust cover helps shield your rifle’s action from dirt and debris, preserving reliability while maintaining the classic A1-style look many shooters prefer.

Designed as a complete assembly, this kit includes the ejection port door, hinge rod, and spring, giving builders and armorers everything needed to refresh a worn or missing cover. It is well suited for new AR-15 builds, refurbishing surplus uppers, or keeping on hand as a small-parts spare for range and training rifles. Luth-AR is known for practical, no-nonsense components that focus on function and consistent performance.

Key Features:

• Manufacturer: Luth-AR
• Model: UR-05AA1
• Caliber: 223/5.56mm
• Firearm Type: AR-15
• Material: Steel
• Pieces: 3
• Series: Ejection Port Cover Assembly