This is the AFV Club, they are just great, though the APCBP heads don't hold without glue.
If you meant the place I got them, then it would be this online-store:
http://www.modellbau-koenig.de/Suche/88cm_L/56.htm?n_vl=8.8cm+L%2f56&FilterScale_s=1:35

Oh damn, thanks for the tip, I guess i will do that with some turpentine or so? I was not aware of this problem...

Not with turps as it will destroy the plastic

Use Tamyia Thinner completely safe and dries almost instantly.

Some pens have an issue some don't, so its probably best to be safe. You could test it on some left over plastic

Oh, ok, cool.

You could also check here, but I think they are pretty strange as their page is not available in English...And delivery is very slow with them, I quit using them for the latter reason.

http://www.modellbau-universe.de/suche.html

* Koenig is very swift in responding, has excellent customer support and are very professional.

I felt like I need to improve some soldering skills first... Soldered my fingers together (really painful) a few times and have put the Tiger aside till after Wacken Open Air.

Meanwhile I started work on my Waffenträger PaK 43 Ardelt. Nice kit, but lots of obvious details missing...

Fuel tanks installed (as depicted in a russian script I found)


Minor modifications seen here... I will depict the fuel access hatches in an open state!
Here I tried some mechanisms so that they remain movable...
I chose a third kind in the end. I found no footage and so I mixed Pz. 38(t) and Hetzer and pz iv styles.


As the air inlet ducts were abismal... I had to make them myself.

And here attached to the cut out frontal plate.


Cheers,
have a great day, sunny here in Leipzig.

I have created a separate build blog for the Waffenträger.

https://armorama.kitmaker.net/forums/234237&page=1