<https://www.luth-ar.com/product/223-commercial-carbine-buffer-tube-assembly/#product>
<http://schema.org/description>
"Commercial Carbine Buffer Tube Assembly - .223/5.56\r\nKit includes recoil buffer components for a new .223 AR15 build or to convert your current AR15 to a Commercial carbine buffer tube recoil system.\r\n\r\nKit includes:\r\n\r\n \tCommercial 6-Position/Carbine Tube\r\n\r\n \tMaterial: 6061-T6 Aluminum\r\n \tFinish: Hardcoat Anodized Black\r\n\r\n\r\n \t.223 buffer spring\r\n \t.223 buffer body - 3.2 oz\r\n \tLatch Plate\r\n \tLock Ring\r\n\r\n&amp;nbsp;\r\n\r\nSKU: 223-C-BAP"
<https://www.luth-ar.com/product/223-commercial-carbine-buffer-tube-assembly/>