This is probably the best and most thought of shooting sling in the market! Designed by a active shooter throgh almost 40 years. 
Adjustable length and tention to adjust shooting angle and shoulder preassure. Split sling solution to secure that the recoil hits the shoulder and not the holding hand. This is important to secure that point of impact stay same as when zeroing with bipod or other supports. Quick realease connection to the arm make you free from the sling in a second, if needed… 
Materials: UH-Web
Size: One size, 1,5′ web
Weight: 150 gram