The White Label Armory AR15/AR10 Ejection Port Cover Spring 10-Pack provides high-quality, Mil-Spec springs engineered for dependable dust cover function. These precision-manufactured springs are black oxide coated for corrosion resistance and durability, ensuring smooth and reliable operation across both AR15 and AR10 platforms. Made in the USA from premium materials, this pack is ideal for builds, maintenance, or spare parts kits, offering long-lasting performance and trusted quality.