Kletz, I'm going to go looking at TAPCO and see if they have anything cheaper. They are up the street, so to speak, from me (about 30 min away). If we can work something out, I will just go and pick it up. I did find another place online that supposedly makes them themselves (in the USA) and will sell in bulk for around $3 each. I've emailed them and hopefully they'll reply soon. More info to come.
BRF, the slings I'm looking to make are single pointers, to fit a carbine sling loop at the base of AR collapsable stocks. Having the HK snap hooks allows the user to quickly "unattach" the sling if needed, without having to trail a 5' length of webbing.
ETA: Hmm, apparently, TAPCO has some used, HK slings complete with snap hooks for $1.99! Sweet. That's cheaper than anywhere else, and I wouldn't have to pay shipping. Now, to see how many I can buy...