No problem, my friend.
I don't know the specific specs, but as far as I know all links used by the American military (and most NATO countries) in the last several decades have been the same.
Those links look EXACTLY like the links we used in the 5.56 M249 SAW. I'd be very surprised if they didn't work in a modern 5.56 belt-fed upper.
0331: "Accuracy by volume."