these pens look nice.
Ranga has a rather clear scheme of pen design, which is probably validated and provides interesting results.
These seem to be model 8 and 8B with swollen barrel and cap so that when closed they are flush aligned.
The name also gives this away, it could have been 9 and 9B, but possibly 9B and giant 9B due to even slightly larger size.
The same scheme can be found in model 3 and 4, since model 4 is a model 3 (same section) with a swollen barrel and matching cap to align flush (either rounded ends in the C version or flat tops).
It's very methodical and industrial in a way, and Ranga deserves credit for developing its range further for the enjoyment of its customers.
Regretfully I think these pens are not for me since the big step down from barrel to section is really a deal breaker for the way I hold my pens. I have a similar problem with model 4 although admittedly it's not so bad and I still do use my model 4s (I have 3 of them! my pink ripple was with me at the office today).
That is possibly until I have the chance to try one in person, but at the moment I will not be ordering, despite the looks, especially capped, are really nice.
No issues though, there are so many other Ranga models to enjoy, and I do already have quite a bunch...