Forward Controls Design Carbine Sling Woodland/M81 CSF Woodland M81. CSF isn't modeled after or based on any particular sling though one may say Vickers comes close. Forward Controls Design defined the areas we deemed important and honed in on these. There are only so many ways to make a 2 point adjustable sling CSF isn't meant to be ground breaking it is designed to be a hard use sling that is easy and intuitive to operate. Military grade webbing is used for the sling body. There is quick detach buckle on the buttstock or rear end of the sling oriented in a way the buckle won't pinch the user's finger when he uses it to quickly and easily drop the sling. The quick detach buckle is only on the rear side of the sling not in front. Total length of 65in (max length with 100percent slack removed in the adjustment loop) with 11in of quick adjustment range via the pull tab and additional length adjustability in the rear quick release buckle. NOTE: CSF does not ship with sling swivels. Please do not fully disassemble the CSF you may not be able to reassemble it once it's taken apart. Specifications for Forward Controls Design Carbine Sling: Manufacturer: Forward Controls Design Length: 65 in Package Contents: Forward Controls Design Carbine Sling Forward Controls Design CSF Woodland M81: Carbine Sling Woodland/M81