Bolt Action Pen

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A model in Big Idea Design's fountain pen lineup. Specs below reflect the typical configuration across Big Idea Design's core range.

A solid mid-range option once someone has decided fountain pens are a habit worth investing a bit more into.

Specs

Filling systemCartridge / converter (typical for most fountain pens)

Ink capacityVaries by model

Nib optionsF, M (steel, typical)

MaterialResin or metal

Typical priceVaries, check current listings

How long has your Bolt Action Pen been inked?

Inktend counts the days and reminds you when it's time to clean.

Track it →

About Big Idea Design

Big Idea Design is an everyday-carry design company based in Chattanooga, Tennessee, operating since 2011. It is known for machined titanium writing instruments, including bolt-action pens, pocket pens and titanium fountain pens, many launched through crowdfunding, all backed by a lifetime warranty.

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How to fill the Big Idea Design Bolt Action Pen

Fill it two ways: snap in a pre-filled international cartridge for convenience, or use a converter (a small plunger or twist mechanism that installs the same way a cartridge does) to draw ink from any bottle. The converter route opens up the entire world of bottled ink, which is where most of the hobby's color variety lives.

Choosing a nib size

Nib size determines line width, not writing pressure: fountain pens are meant to glide, never press. Extra-fine (EF) suits small, dense handwriting and thin paper; fine (F) is the most broadly recommended default; medium (M) shows more ink character and shading; broad (B) and stub grinds favor bold, expressive strokes and calligraphy-adjacent writing.

Keeping it clean

A quick flush with cool water every time you switch ink colors, plus a full clean every 4 to 6 weeks of regular use, is enough to keep the nib and feed performing well. Inktend's cleaning reminder is tuned to a 21-day baseline and adjusts naturally to how often you actually refill.

Pairing inks with the Bolt Action Pen

Because refills are quick with a cartridge or converter, this is a good pen for rotating through several colors rather than committing to one; sample vials work especially well here.

Browse the full ink library →

Frequently asked questions

How do I fill the Big Idea Design Bolt Action Pen?

Snap in a pre-filled cartridge, or use a converter to draw ink from any bottle. The converter route is the cheaper long-term option.

What nib size should I get for the Bolt Action Pen?

Fine (F) is the safest default for a first pen. Go finer for small, dense handwriting; go broader if you want more ink character and shading.

How often does the Bolt Action Pen need cleaning?

Flush it each time you switch inks, and give it a full clean every 4 to 6 weeks of regular use.

Is the Big Idea Design Bolt Action Pen good for beginners?

It can work as a first pen if you're comfortable spending a bit more to start.

More from Big Idea Design

Specs reflect the typical configuration across Big Idea Design's core lineup rather than this exact model. Check current listings before buying.