Some images of the gear. I apologize for the phone pics but it should give you a good idea:
1. photo sniper. The box is used but going strong
2. Everything in neatly arranged and makes me feel like James Bond
3. Mounted and ready. Here you can see the filter set (there are 5 but some are stubborn and will need some patience to unscrew), the 58mm f2 also part of the set and the Pisco m42-to-z adapter
4. Mounted on the Z6. It does not allow as is to add the gun-like grip
5. Detail of the charging trigger
6. Detail of the engraving and focusing wheel. The lens shade is screw-on rubber with metal end ring. I like it.
Once the m42-to-z adapter is added, the both 58 and 300mm lens can focus a little beyond infinity and of course, to closest distance. Then, the adapters helicoids acts as a built-in extension ring. Very useful.