Magna Carta Mag 650 Review: Modern Flex at a Fair Price

Introduction

Quality modern flex is something many fountain pen enthusiasts still yearn for, and the Magna Carta Mag 650 makes a strong case for itself in that space. It is a retailer exclusive offering with a gold nib and a fairly reasonable price for what you receive, and Magna Carta has spent the last couple of years building a solid reputation for both quality standard nibs and very nice flex nibs.

Who This Pen Is For

The Mag 650 was inspired by vintage fountain pens of the 40s and 50s, with the goal of providing a soft, flexible writing experience in a comfortable tapered profile. If you have ever wanted to explore flex writing without jumping into the unpredictable world of vintage pens, this is the kind of pen that makes that step feel much less intimidating.

It suits writers who want expressive line variation for cursive and letter writing, and who value a gold nib at a mid-level price. It is less relevant if you only write quick daily notes with no interest in line variation, since the flex character is the entire point of this pen.

Design and Build

The pen is made from a proprietary Magna Carta resin that alternates with bands of chatoyant, shimmery material. Blue, emerald, gold, and red bands create a kaleidoscope-like visual appearance, and the trim is 24 karat gold plated. The review unit came in the Prismatic finish, one of a wide array of colors including Amber, Black, Cyan, Golden Gate, Malachite, Midnight Blaze, and Prismatic.

At the top of the cap there is a solid color section, and the somewhat flexible clip sits above a band engraved only with the Magna Carta name. The barrel is straight for most of its length, then tapers toward a nicely rounded end. The cap twists off with two full rotations, revealing one of the highlights of the pen: the 14 karat gold fine flex nib paired with a low-profile ebonite feed.

The section begins with a slight flare, angles upward, and the threads are neither sharp nor uncomfortable. In the hand the pen is very comfortable, and it is plenty long enough to use unposted. The cap does barely post, so posting is not really recommended.

Main Strengths

The standout feature is the flex itself. With very light pressure the fine nib lays down a crisp line, and with added pressure it can flex significantly, producing a generous, saturated flow of ink. The line variation between light and heavy pressure is genuinely significant.

What impressed most during extended flex writing is the feed. On a pen pushing this much ink, feeds can often get starved, but the low-profile ebonite feed kept up without issue, even during fast writing. At one point the feed touched the paper during very heavy pressure, so a little care is warranted there, but ink starvation was never a problem.

Reverse writing is not the main event here, yet it performed pleasantly, laying down an extra-extra-fine line. As a cartridge converter pen it accepts standard international cartridges, and a converter is provided. With its one-piece construction, it can even be eyedroppered with the appropriate amount of silicone grease.

Things to Consider Before Buying

The Mag 650 is a goldspot exclusive, not just for this specific colorway but for the entire Mag 650 model, so availability is limited to that retailer. The pens are not limited editions and are not individually numbered.

The cap posts insecurely, so plan to use the pen unposted. Also keep in mind that heavy flex pressure can bring the feed close to the paper, which rewards a light touch. Diamine Red Dragon made for a beautiful saturated pairing, with Diamine Oxblood offering a browner red and Stilo e Stile’s Roman Centurion Red sitting on the brighter side, so there is plenty of ink matching fun to be had.

Buying Advice

At $450, with a 14 karat gold flex nib, a comfortable resin body, and the included converter, the Mag 650 represents a very good value for the money at that price point. The larger Mag 600 remains an alternative if you prefer a bigger pen that also carries a nice gold flex nib.

For anyone who has been waiting for a dependable, modern flex pen that does not require a vintage hunt, the Mag 650 is an easy recommendation.

Conclusion

The Magna Carta Mag 650 delivers on its promise: a soft, flexible writing experience, attractive stacked resin, comfortable ergonomics, and a feed that keeps up with heavy ink flow. For flex enthusiasts and newcomers alike, it is a compelling option at its price.