freefly
(freefly)
4
Doh! Totally forgot about PflexPro! He (Randy) is a member here, and produces a top-quality product as mentioned (with a multitude of configurations/choices).
I guess I was in pseudo-“budget” mode, as his are a bit more pricey than the ones I mentioned above.
Still, if you don’t mind spending a few bucks more on a quality, bomb-proof drop-in, they are hard to beat, IMO.