Search:

Is this it ?

https://www.milsurps.com/showthread.php?t=27833&

Oval Circled W, often found stamped Made in USA Sling Slides are Post WWII.
Sometimes found partly stamped on the edge with what looks to be a small W inside a C, but correctly stamped it is a W...

Web looks good to me also.
Hard to compare the Keepers from the pictures.
Some appear Wide, Narrow and 1 or 2 may be round.
Are any of the middle bars on the Keepers marked inside?