OK, there is some interest in these, and some questions, so I will try to clarify. For anyone that has bought and used a clone, much of what follows will seem elementary, but these are some of the questions I'm getting, so......
I purchased LowPro on Ebay for 18 bucks. The Derringer was an add-on, impulse-buy from Fast Tech for 8 bucks when I ordered a bunch of other stuff. Neither package is marked with a manufacturer, so there is no way for me to know who made these. I am assuming both are made in China, but have no idea.
I have $26 invested so if I sell for $18 my net will be $13-14 after shipping and fees. It's almost not even worth my effort to stand in line at the PO during the Xmas rush. Not trying to be a dick, just being honest. I am basically selling these for 1/2 of what I paid.
If you have any doubts about the quality of these, the material used, or are leery of clones in general - don't buy them. If you have any doubts whether these will work on your mod - don't buy them. I have no idea if either will work with your hybrid cap, or any other of your mods. Nor do I know how these compare with the authentic versions as I have never seen or used an authentic version of either one. Understand that these are what they are - inexpensive clones of unknown origin (like MANY clones), though both worked as intended for me.
Finally, I am selling them for that same reason many of us sell our used stuff: I tried both of these briefly and neither suited my vaping style/needs, and both are now sitting idle. I thought someone else could use a couple of well made clones in like-new condition.