The Tiger Rock Inc. DC223-U2 223/5.56 Rifle Dust Cover Complete Assembly delivers unmatched protection for your AR-15's ejection port, ensuring reliability and functionality. Designed with durability in mind, this assembly keeps your firearm safe from dust, debris, and moisture, enhancing its longevity and performance. Precision-engineered Ejection Port Cover Door for superior protection Robust construction from high-quality materials for extended use Durable steel spring for effortless operation Additional steel rod for enhanced stability User-friendly C-Clamp for easy installation Invest in the Tiger Rock DC223-U2 to ensure your firearm remains in optimal condition, making it an essential accessory for every owner.