The Colt Sporter Leather Sling was a factory accessory for the R6601 Colt Sporter Match Delta HBAR and the R6700/6701 Colt Sporter Competition HBAR rifles in addition to being a separate accessory.

These slings are similar to the leather Turner Saddlery M1907 National Match Service Rifle Slings.

The images above are from a Gunbroker.com auction that ended on 27 OCT 2019. The end of auction price for the sling was $256.00.