I didn't know that McGizmo clips were made by TEC accessories, I only knew them by the name
They're not, TEC are just a distributor. And the TEC snap gates won't take 550 cord so it's McGizmo or nothing for me.
I've just ordered a couple from survivaldepot.co.uk because they're actually the cheapest I can find once you factor in shipping and possible customs charges. Not really super happy about having to pay £3.80 per unit (£4.30 once I add shipping) but it meant my total cost was reduced.
But, I spent far too many hours looking at the various suppliers and working out shipping and customs and per unit costs and blah blah blah. Far better to just buy it and if it's 50p extra per unit who cares. Must learn this.