The Luth-Ar BT-08-OR-10 extractor O-rings deliver a reliable, cost-effective replacement solution for AR-15 bolt assemblies, packaged as a 10-pack to ensure youre prepared for field maintenance and routine upgrades. These AR-15 extractor O-rings are engineered to fit standard rifle bolt components, providing a precise seal and consistent performance that supports smooth chambering and reliable extraction across a variety of conditions. Designed for use with long gun parts, this part from Luth-Ar helps maintain bolt integrity and cycling efficiency, reducing the risk of extraction failures and facilitating quick, on-the-spot replacements during routine maintenance or in-field repairs. The durable construction and tight tolerances of the O-rings contribute to dependable pressure sealing and durability under high cyclic loads, while the multi-pack format minimizes downtime and parts inventory concerns for serious enthusiasts, match shooters, and professional users alike. Whether youre building, upgrading, or maintaining an AR-15 platform, these extractor O-rings from Luth-Ar offer a practical, economical choice to keep your bolt action smooth and reliable.