Poly Technologies M1 Garand Cotton Web Sling Khaki Tan. The M197 leather sling was used from before World War II and was still being used during the Korean War. This M1 style web sling was used from approximately 1944 on. It is still one of the most practical and economical sling designs for carrying your rifle. M1 Garand sling is made from heavy cotton webbing and fits 1.25" swivels. This type of sling was also issued with early production M14 rifles. M14/M1A sling is made from long-wearing nylon; fits 1.25" swivels. Specifications for Poly Technologies M1 Garand Cotton Web Sling: Manufacturer: Poly Technologies Color: Khaki Tan Fabric/Material: Cotton Webbing Package Contents: Poly Technologies M1 Garand Cotton Web Sling Poly Technologies 100-021M: M1 Garand Cotton Web Sling Khaki Tan