Upgrade your MCR and Shrike 5.56x45mm feed cover assemblies with our premium replacement Feed lever Arm spring. Engineered for precision and durability, this spring is designed to ensure optimal performance and reliability in your firearm's feeding mechanism. Crafted from high-quality materials, it offers enhanced resilience and longevity, reducing the need for frequent replacements. Whether you're in the field or at the range, trust this essential component to maintain smooth and consistent operation. Easy to install, it seamlessly integrates into your existing setup, making it an ideal choice for both professional gunsmiths and firearm enthusiasts. Elevate your shooting experience with this indispensable upgrade.