Fisher Space Pen Blue Moon Bullet – a pen with a history in space

The Blue Moon Bullet 400BBCL model is part of the 400 series – Fisher Space Pen’s first and most popular series. The barrel is made of brass and steel with a bright blue translucent finish, inspired by the dark blue nebulae of the galaxy.

Each pen is precision-assembled and hand-tested. It comes with a lifetime guarantee against manufacturing defects.

Technical specifications of the Fisher Space Pen Blue Moon Bullet

Length when extended: 13.6 cm
Length when retracted: 9.6 cm
Barrel: brass with blue finish
Refill: SPR4 – black ink, medium tip
Compatible with all Fisher PR refills
Tip: tungsten carbide ball
Comes with a plastic gift box

Why this pen writes where others stop

The refill contains a pressurised nitrogen gas cartridge. A small metal cylinder presses against the hermetically sealed ink, allowing you to write at any angle.

The thixotropic ink is solid in its normal state and only liquefies when writing – which is why the pen doesn’t leak or skip.

It writes at temperatures ranging from -34°C to +120°C
It writes underwater and in zero gravity
Writes at any angle, including upside down
Lasts up to three times longer than ordinary ink
Doesn’t freeze in winter or run in summer

Compact design to fit in any pocket

Its small size means the pen can be carried in a wallet or organiser. 🚀 The clip secures it effortlessly to a pocket, belt or rucksack.

The story behind the Fisher Space Pen

During the early NASA missions, astronauts wrote with pencils. For the Gemini programme, NASA purchased mechanical pencils at a cost of $128.89 each – an expense that drew serious criticism.

Paul S. Fisher of Fisher Pen Co. developed the pen without funding from NASA, with the company investing around $1 million of its own funds. Following rigorous testing, in 1967 NASA equipped the astronauts of the Apollo programme with these ballpoint pens at a cost of $6 each.

In February 1969, the Soviet Union purchased 100 Fisher pens and 1,000 refills for the Soyuz spaceflights. 🌌 To this day, American astronauts and Russian cosmonauts still use them in orbit.

A gift for a man of character

The Fisher Space Pen Blue Moon Bullet is a suitable gift for men in a variety of professions – doctors, lawyers, military personnel, police officers, business leaders, teachers, school leavers and tradespeople.

It’s also a reliable pen to keep in your car or everyday bag – it works in all conditions, whenever you need it.

Frequently Asked Questions

How does the Fisher Space Pen Blue Moon Bullet refill work?

The SPR4 cartridge contains a pressurised nitrogen gas cartridge. A small metal cylinder pushes the hermetically sealed thixotropic ink. In its normal state, the ink is solid and only liquefies on contact with paper whilst writing. This means that the pen does not leak even under extreme conditions and does not dry out in storage. The system works regardless of the writing angle and gravity.

At what temperatures does the Fisher Space Pen work?

The Fisher Space Pen Blue Moon Bullet performs reliably at temperatures ranging from -34°C to +120°C. It won’t freeze in winter conditions and won’t run in summer temperatures, whether in a car or outdoors. This is precisely why it’s a popular choice for a pen in the car, a rucksack or a toolkit for use in extreme working conditions.

Can the Fisher Space Pen write underwater and in zero gravity?

Yes. Its design, featuring a hermetically sealed cartridge and a pressurised nitrogen cartridge, allows it to write underwater, in zero gravity and at any angle, including with the tip pointing upwards. It is precisely these qualities that led NASA to equip the astronauts of the Apollo programme with the Fisher Space Pen. The pen has been tested and proven in real space missions.

What type of refill does the Blue Moon Bullet 400BBCL use, and can it be replaced?

The pen comes with an SPR4 refill containing black ink and offering a medium line width. The refill is replaceable, and the model is compatible with all Fisher Space Pen PR refills. Refills are available in a range of ink colours and line widths. A single refill lasts up to three times longer than standard ink under normal use.

What is the warranty on the Fisher Space Pen Blue Moon Bullet?

The Fisher Space Pen Blue Moon Bullet comes with a lifetime guarantee against all manufacturing defects. Each pen is precision-assembled and hand-tested before leaving the factory. The warranty covers defects in materials and workmanship, but does not include mechanical damage resulting from misuse.

Who is the Fisher Space Pen Blue Moon Bullet suitable for as a gift?

The Blue Moon Bullet is a practical and prestigious gift for men and women in a variety of professions. It is suitable for doctors, lawyers, business leaders, military personnel, police officers, teachers, engineers, school leavers and craftsmen. Its compact size, lifetime guarantee and the story behind the product make it a memorable gift with a history. It comes in a plastic gift box, ready to present.

What are the dimensions of the Fisher Space Pen Blue Moon Bullet 400BBCL?

The pen is compact and easy to carry. When retracted, it is 9.6 cm long, and when extended, 13.6 cm. The barrel is made of brass and steel with a blue translucent finish. The clip allows it to be attached to a pocket, organiser or rucksack. Its small size makes it convenient for a wallet or handbag for everyday use.