Luth-AR A1 Slip Ring Pack Black. Developed working with several of the most durable and long lasting substances in existence these AR 15 Parts through Luth-AR provides you with a product that will give years of stability. Luth-AR has been generating superior quality products for a very long time and the Luth-AR A1 Slip Ring Pack is their means of demonstrating how much they care. Here at OpticsPlanet we make it our obligation to receive the most suitable solution for all your specifications and exhibiting the Luth-AR A1 Slip Ring Pack is one thing that we are delighted to offer. Specifications for Luth-AR A1 Slip Ring Pack: Manufacturer: Luth-AR Fabric/Material: 6061 Aluminum Finish: Hard Coat Anodized Package Contents: Luth-AR A1 Slip Ring Pack Barrel Snap Ring BL-07 .223/5.56 Barrel Weld Spring BL-08 A1 Slip Ring BL-09A Luth-AR BL-09S: A1 Slip Ring Pack Black