The White Label Armory AR15 Extractor Spring Insert 10-Pack is designed to improve extraction reliability by increasing spring tension within the bolt carrier group. Precision-machined to Mil-Spec dimensions, these inserts fit seamlessly inside standard AR15 extractor springs, enhancing function under demanding conditions. Built from high-quality materials and 100 percent American-made, these components are ideal for upgrades, replacements, or preventive maintenance on your rifle.