For that 300 black - MS3 SINGLE QD SLING GEN 2 Been testing it out - the single to 2 point change works well. would watch out for buying the Chinese knock offs as the tolerance are loose, a buddy went thru two as the quick detach did not hold. I dropped my black Hawk single for the Magpul. For that 300 seen some guys around making some really nice custom ones might be an option to get a leather sling exactly the way you want
"Never argue with stupid people, they will drag you down to their level and then beat you with experience."