AR-15 Ejector Maintenance Rehab Kit The Barrier Defense AR bolt ejector kit for 5.56/.223. This ejector kit is constructed from high-quality steel with black finishing. This kit includes the basic parts to replace the ejector component of your AR style firearm. The ejector, ejector spring, and ejector spring pin are included in this product. Whether you need to replace worn parts, building a system from the ground up, or just want some spares for the future, the bolt ejector kit is a perfect solution. This product is proudly made in the USA. Kit Includes: Ejector Ejector Spring Ejector Roll Pin Comes with the Barrier Defense lifetime warranty! ****Know your states laws when purchasing gun parts.****