The White Label Armory WLA-PAC-3004-05 Extractor Spring is engineered for reliable performance in AR-15 rifles with durable steel construction and nitride finish for enhanced corrosion resistance.White Label Armory WLA-PAC-3004-05 Extractor SpringCompatible with AR-15 platform riflesSteel construction for durability and reliabilityNitride finish for corrosion resistance and longevity5-pack quantity for multiple builds or replacementsEssential for AR-15 maintenance repairs and custom builds these extractor springs ensure consistent bolt function and reliable extraction of spent casings.