In this video I’m reviewing the Majohn (Moonman) P140, which is a big, comfortable piston-filling fountain pen that’s making a lot of noise in the Chinese pen market—and for good reason. I walk through the parts and features (clear acrylic dome, gold trim, twist cap that comes off in about two turns, and that brass piston mechanism), then I do a writing sample with the No. 8 “Sun” steel nib in Fine. I also talk about the whole “it looks like a Montblanc 149” conversation: yes, the dimensions and clip feel very Montblanc-adjacent, but it’s also in the same general family as other big cigar-shaped pens (like the Asvine V800), and there’s only so much you can do with that silhouette. For the writing test I inked it with Robert Oster Australian Shiraz, and the big takeaway is that this nib is genuinely good—wet for a Fine, smooth overall with a touch more feedback on some cross-strokes, and it keeps up nicely in quick writing. You can squeeze a little line variation out of it, but it’s not a soft nib. My main gripes are occasional thread catching/cross-threading and the derivative design cues, but the pros are huge: great value (roughly AU$45–$85 depending where you buy), solid build, comfortable balance despite the weight in the brass mechanism, and a filling system that feels sturdy and reassuring in the hand.