Fisher Space Pen
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Fisher Space Pen

by Fisher Space Pen Co
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About the Product

The Fisher Space Pen (Bullet, S400BCL) is a compact, metal-bodied pen designed for everyday carry and long-term use. Its brass barrel and durable matte or chrome finishes hold up well to pocket wear, and the cap posts to full length for better balance during longer notes. Performance comes from Fisher’s pressurized PR refill (e.g., PR4), which delivers consistent ink flow and an approx. 15,000 ft write-out—great for travelers or anyone who hates mid-meeting dry-outs. In day-to-day writing, smoothness is solid for a ballpoint, though not as silky as gel inks. The lifetime warranty covers manufacturing defects, with a straightforward mail-in process; just note that consumables (refills, springs, O-rings) and normal wear aren’t covered, and you’ll typically pay to ship the pen in.

What stands out

  • Durability: Solid brass body; finishes wear well, and raw brass versions patina instead of peeling.
  • Function: Reliable PR refill; compact when closed, balanced when posted.
  • Fixability: Easy, widely available refills; limited user-serviceable parts beyond the cartridge.
  • Warranty: Lifetime defect coverage, but exclusions apply and shipping is on you.

Bottom line: A long-lasting, pocket-friendly pen with excellent refill availability and real-world reliability. If you want maximum smoothness or a grippy section, look elsewhere; if you value durability, portability, and a proven warranty, this is an easy pick.

About Fisher Space Pen Co

Fisher Space Pen Co. is an American manufacturer best known for creating pens that literally work in space. Founded by inventor Paul C. Fisher in the 1960s, the company developed the pressurized cartridge technology used by NASA astronauts on Apollo missions—and still in use on the International Space Station today. That same engineering focus on reliability and performance under extreme conditions carries through to its consumer pens, which are designed to write in zero gravity, underwater, over grease, and in temperatures ranging from –30 °F to +250 °F.

The brand’s commitment to durability shows in its lifetime guarantee and ongoing repair program, signaling a practical dedication to long-lasting use rather than disposable design. Fisher Space Pen’s reputation for precision and reliability is well established, with decades of consistent performance earning the company strong consumer trust and a devoted collector community. While its mission emphasizes performance more than sustainability, its longevity-first approach effectively reduces waste through products built to endure for decades.

Still a family-run company, Fisher Space Pen Co. maintains its headquarters and manufacturing in Boulder City, Nevada, continuing a legacy of U.S. production and steady innovation. For shoppers seeking a tool that merges durability, history, and everyday utility, Fisher stands out as one of the few pen brands truly designed to last a lifetime.

Key Documents

FAQ

Fisher Space Pen FAQ

I lost my spring. Can you send a replacement? Will you put a stronger feeling spring in my pen? What was the pen that Neil and Buzz took to space?
spacepen.com
WARRANTY

Repair & Replacement

Fisher Space Pen Co. pens and refill cartridges are guaranteed against ... This warranty does not cover damage caused by abuse, accident, improper care and/or use ...
spacepen.com

Product Score:   55.0
Mission & Values
Whether the brand explicitly commits to durability, repairability, and sustainability.
Ideal: Brand mission and actions clearly prioritize long-lasting, repairable products.
Confidence — MEDIUM
5 sources
70.0% (W 40%)
PRO
The Fisher Space Pen Co. promotes a *lifetime guarantee* on their pens, implying a commitment to durability and repair or replacement of defective products.The brand’s “Our Story” and history narrative emphasize its legacy of precision engineering, long-term use in space missions, and products built for extreme conditions.
CON
While the lifetime guarantee is strong, the brand does not appear to publicly emphasize explicit sustainability or circular design (e.g. use of recycled materials or disassembly for recycling).The mission statements tend to focus on performance and reliability in extreme environments rather than on long-term repairability or environmental stewardship as core values.
Track Record / Reputation
Independent history of reliability and consumer trust.
Ideal: Decades of consistent positive reputation from reviews, watchdogs, and experts.
Confidence — HIGH
5 sources
85.0% (W 40%)
PRO
Fisher Space Pens have been used on NASA’s Apollo missions, the Space Shuttle, and the International Space Station, lending strong real-world proof of reliability.Independent reviews and histories note the pen’s ability to function under extreme temperatures, zero-gravity, underwater, and write over long distances, reinforcing its reputation for durability.
CON
Some marketing claims (e.g., “writes for a lifetime” or “writes 30.7 miles”) appear in product literature and popular sources rather than as independently verified, which means consumers should interpret them cautiously.While widely respected among enthusiasts and space-history contexts, the consumer pen market has relatively fewer critical third-party long-term durability studies specifically comparing Space Pen models to competing premium pens.
Corporate Stability
Financial and organizational stability of the brand or company.
Ideal: Established, stable company with low risk of discontinuing support.
Confidence — MEDIUM
4 sources
65.0% (W 20%)
PRO
The company traces its origins to Paul C. Fisher (mid-20th century) and continues under family leadership with a long lineage, suggesting organizational continuity.Fisher Space Pen has demonstrated longevity in niche markets (e.g. aerospace, collectors) and maintains operations around warranty and repair programs, suggesting ongoing business investment.
CON
We did not locate clear recent financial statements or market performance data to confirm robust growth or profitability.As a niche brand without large visible market expansion, it's possible that support could diminish if demand shrinks, though current evidence is not conclusive.
Coverage
Scope of what failures the warranty covers.
Ideal: Full coverage of defects and workmanship, including all major components.
Confidence — HIGH
3 sources
80.0% (W 20%)
PRO
Fisher Space Pen offers a lifetime guarantee against manufacturing defects in materials and workmanship.Repair or replacement is offered at Fisher’s discretion, which suggests coverage of core functional failures.
CON
The warranty explicitly excludes damage from misuse, accident, normal wear and tear, cosmetic damage, or improper care.Wear-parts like ink refills, O-rings, springs, and stylus tips are excluded from coverage.
Duration
Length of warranty term.
Ideal: ≥10 years (lifetime where feasible).
Confidence — HIGH
3 sources
100.0% (W 30%)
DATA
Lifetime
Ease
How simple it is to file and process a warranty claim.
Ideal: Clear online or phone process requiring minimal effort or paperwork.
Confidence — MEDIUM
3 sources
65.0% (W 10%)
PRO
Fisher provides instructions to send the pen and parts to them via mail for repair or replacement, with inspection and re-shipment within ~3 weeks.No registration appears required, simplifying the process for the owner.
CON
The burden is on the user to package and ship the pen to Fisher at their own cost.Processing time may stretch to 4 weeks during holiday seasons.
Cost
Direct costs to the customer for warranty service.
Ideal: No cost to the customer, including free shipping and parts.
Confidence — MEDIUM
3 sources
70.0% (W 10%)
DATA
No charge for repair/replacement (customer pays return shipping)
Exclusions
Limitations or carve-outs in warranty terms.
Ideal: Few or no exclusions; coverage applies to all core components.
Confidence — HIGH
3 sources
60.0% (W 10%)
PRO
Exclusions are clearly listed (e.g. misuse, wear and tear, cosmetic damage).Unmodified items of original workmanship remain covered.
CON
Many functional parts (springs, O-rings) are explicitly excluded.Damage from user errors or accidents is not covered.
Transparency
Clarity and accessibility of warranty wording.
Ideal: Plain-language warranty document published openly online.
Confidence — MEDIUM
3 sources
75.0% (W 10%)
PRO
Warranty and repair policy are published on the official Fisher website and clearly labeled 'Repair & Replacement'.Documentation includes explicit terms, exclusions, and shipping instructions.
CON
Some terms use legal / warranty jargon rather than very plain language. (e.g. “manufacturing defects in materials and workmanship”)No separate downloadable PDF of a full warranty document was located; most content is embedded in web pages. (No evidence of a stand-alone PDF) — uncertain.
Transferability
Whether warranty transfers to subsequent owners.
Ideal: Warranty fully transferable between owners with no loss of coverage.
Confidence — LOW
3 sources
40.0% (W 10%)
DATA
Unclear / possible (no registration required; some users report transfer)
Barrel Material
Primary body material determining strength, scratch resistance, and corrosion resistance.
Ideal: Metal or high-grade resin resistant to cracking, UV, and corrosion over decades of use.
Confidence — HIGH
2 sources
100.0% (W 25%)
DATA
Brass body (metal) with chrome or matte finish
Mechanism Lifespan
Expected number of cycles the pen’s retract or cap mechanism can endure without failure.
Ideal: Rated for >50,000 actuations or proven through long-term reliability testing.
Confidence — LOW
0 sources
0.0% (W 25%)
DATA
—
Finish Wear Resistance
Ability of the surface coating or anodization to resist abrasion and fading.
Ideal: Hard-anodized or deep-plated finish that resists scratches and discoloration after years of use.
Confidence — MEDIUM
3 sources
70.0% (W 25%)
PRO
Chrome or matte finishes on the Bullet model resist wear in use and are commonly praised for durability.The raw brass variant patinas rather than peeling, which can be considered a tolerant aging behavior.
CON
Chrome plating may scratch or show wear over time, especially in contact with hard surfaces (user reviews mention minor scratches).
Clip Durability
Strength and flexibility of the pocket clip under repeated bending.
Ideal: Spring-steel or titanium clip that maintains tension after thousands of uses without deforming.
Confidence — LOW
3 sources
40.0% (W 25%)
PRO
The Bullet model in its clip version uses a pocket clip (though clips are optional).
CON
Clip is not always included (some variants ship without it), raising concerns about standardization and reliability.No published specs on clip material or fatigue tolerance were found.
Refill Availability
Ease of sourcing compatible ink refills or cartridges over time.
Ideal: Standardized refill format available from multiple suppliers for 10+ years.
Confidence — HIGH
3 sources
90.0% (W 35%)
PRO
The Bullet uses the Fisher PR series pressurized refill (e.g. PR4) which is widely available and sold from many suppliers.Refill longevity is strong: PR4 refill is rated to write approximately 15,000 feet (~4,572 m) per Fisher’s published data.
CON
Only Fisher’s own pressurized refills are recommended; other third-party refills may not deliver optimal performance..
Disassembly Ease
Ease of separating pen components for cleaning or replacement.
Ideal: Tool-free or simple threaded design allowing full cleaning and part replacement.
Confidence — MEDIUM
3 sources
50.0% (W 25%)
PRO
User reviews describe that the Bullet unscrews for refill access, implying basic threaded disassembly.
CON
No official documentation indicates support for full disassembly or replacement of internal parts (e.g. springs) by the user.Fisher states that springs are not separately replaced due to calibration, indicating limited internal repairability.
Spare Parts Support
Availability of replacement parts such as clips, nibs, or mechanisms from manufacturer or third parties.
Ideal: Manufacturer or aftermarket parts available for 10+ years after purchase.
Confidence — MEDIUM
3 sources
40.0% (W 25%)
PRO
Replacement refills are readily available; Fisher continues to supply PR refills long term.
CON
Fisher states that they cannot send replacement parts (e.g. springs) separately; pen must be sent in for repair.No published spare clip or body parts catalogs were found for consumer purchase.
Ink System Maintainability
Ability to service or replace internal ink delivery components (nib, converter, feed).
Ideal: Modular ink system with replaceable nibs or converters, easy to flush and maintain.
Confidence — LOW
3 sources
30.0% (W 15%)
PRO
Ink cartridge (PR4) is modular and replaceable by user.
CON
No evidence found that the ball/nib or feed mechanism itself is user-serviceable or flushable; it is generally considered sealed. Fisher does not provide separate parts like nibs or feeds for replacement.
Ink Capacity
Volume of ink or refill size determining how long the pen writes between refills.
Ideal: ≥1.0 mL (0.034 fl oz) ink capacity or long-lasting cartridge for fewer replacements.
Confidence — MEDIUM
3 sources
80.0% (W 25%)
DATA
Approximately 15,000 ft write-out (~4,572 m) per PR4 refill
Writing Smoothness
Consistency and friction level of the writing tip on standard paper.
Ideal: Uniform ink flow and tip glide with minimal skipping or feedback.
Confidence — MEDIUM
3 sources
70.0% (W 30%)
PRO
The pressurized PR refill supports consistent ink flow even under adverse conditions.Mixed reviews praise the Bullet’s smooth performance on varied surfaces.
CON
Some reviewers describe it as not the “silkiest” compared to low-viscosity gel inks, particularly on superior paper surfaces.
Ergonomics & Balance
Comfort and weight distribution during extended writing sessions.
Ideal: Balanced center of gravity with non-slip grip and weight under 1.0 oz (28 g).
Confidence — MEDIUM
3 sources
80.0% (W 25%)
PRO
The Bullet posts cap to become a full-length writing instrument, improving balance in use.Weight is modest: ~0.68 oz (19 g) including ink according to JetPens listing.
CON
Without the cap posted, the pen is short and may feel awkward for some users.No textured grip — smooth metal body may slip under certain conditions. Some reviewers mention slight slip on chrome finishes.
Ink Drying Performance
Time for ink to dry on paper, affecting smudge resistance and usability.
Ideal: Dries within 5 seconds on standard paper with minimal feathering or bleed-through.
Confidence — LOW
0 sources
0.0% (W 20%)
DATA
—

See details on our Scoring Method.

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Sources

These references are living documents: our research team and community continually review and update them to keep product evaluations accurate and fair. When stronger or more up-to-date sources emerge, we re-score accordingly. If you know of a credible study, review, or technical resource we’ve missed, please share it below — every contribution helps strengthen the evidence base.

  1. Fisher Space Pen FAQ
    spacepen.com · Updated 2025-10-16 [Key]
    I lost my spring. Can you send a replacement? Will you put a stronger feeling spring in my pen? What was the pen that Neil and Buzz took to space?
  2. Repair & Replacement
    spacepen.com · Updated 2025-10-16 [Key]
    Fisher Space Pen Co. pens and refill cartridges are guaranteed against ... This warranty does not cover damage caused by abuse, accident, improper care and/or use ...
  3. Space Pen - Wikipedia
    en.wikipedia.org · Updated 2025-10-16
    The Space Pen (also known as the Zero Gravity Pen), marketed by Fisher Space Pen Company, is a pen that uses pressurized ink cartridges and is able to write in zero gravity, underwater, over wet and greasy paper, at any angle (including upside down), and in a very wide range of temperatures.
  4. Fisher Space Pen 400 Raw Brass Bullet Pen Review - The Professional Gunfighter
    progunfighter.com · Updated 2025-10-16
    Getting Started with the Fisher Space Pen 400 Raw Brass Bullet Pen The Fisher Space Pen 400 Raw Brass Bullet Pen is more than just a writing tool; it’s a testament to functional design and robust engineering, manufactured by the Fisher Pen Company. Known for its ability to write in extreme condit…
  5. Bullet Space Pens
    fsppromos.com · Updated 2025-10-16
    Length: Open 5.3” – Closed 3.8”Composition: All Brass w/ Chrome FinishCartridge: Fisher PR4, Black Ink, Medium PointPackaging: Moonscape Box with Astronaut SleeveClassic Bullet Pen When closed, the Bullet Space Pen is the perfect size to carry in your wallet, pocket, purse, car glove box, organiz…
  6. 7908
    jetpens.com · Updated 2025-10-16
  7. Our Story
    spacepen.com · Updated 2025-10-16
  8. Pr Refills
    spacepen.com · Updated 2025-10-16
  9. Fisher Space Pen PR Series Pressurized Ballpoint Refill
    unsharpen.com · Updated 2025-10-16
    The PR is the standard Fisher Space Pen refill. It's the famous refill that has been sold with the Space Pen. It writes at any angle, underwater, and at a crazy temperature range: -30 degrees F to 250 degrees F. The PR refill ships with almost all Fisher Space pens, including the AG7 and CH4
  10. Fisher Space Pen Bullet Ballpoint Pen
    unsharpen.com · Updated 2025-10-16
    The Bullet is Fisher Space Pen's second most famous design after the iconic AG-7 Shuttle pen. The Bullet is a compact, pocketable pen with Fisher's lifetime warranty. The Bullet uses Fisher's excellent PR4 refill, which is the same used in the AG7 and CH4 space shuttle pens. The Bullet pen is not…
  11. Fisher Space Pen Pressurized Refill
    fisherspacepen.ca · Updated 2025-10-16
    The Fisher Space Pen Refill is the most versatile ink on Earth! #PR4 - SPR1 - SPR4 - SPR2 - SPRSL
  12. 400bcl Matte Black Bullet Space Pen Clip
    spacepen.com · Updated 2025-10-16
  13. History the Fisher Space Pen - SpacePen.eu - Help Center
    news.spacepen.eu · Updated 2025-10-16
    Here's a little history about the Fisher Space Pen Company.
  14. Fisher Space Pen Broke? How To Use The Lifetime Guarantee
    unsharpen.com · Updated 2025-10-16
    Did you know Fisher Space Pens have a lifetime guarantee? They do. I broke a pen and had test if it really worked.
  15. The Story
    spacepen.eu · Updated 2025-10-16
    Allwrite is the official distributor of the Fisher Space Pen and the Fisher Space Pen Refills. Purchase online, worldwide shipment. Easy, fast, reliable!
  16. Pens that Made History: The Fisher Space Pen
    hamiltonpens.com · Updated 2025-10-16
    With the near-Earth Asteroid known as 2023DZ2 (thought to be up to 100 metres wide!) whizzing past earth less than half the distance between us and the moon in March, we couldn't help but think about the amazing work of NASA, UKSA and ESA and the incredible tools of the trade! Alongside the billi…
  17. PR4 Black Medium Original Fisher Space Pen Pressurized Refill
    spacepen.eu · Updated 2025-10-16
    Fisher Space Pen Refill - PR4 Black Medium
  18. 7909
    jetpens.com · Updated 2025-10-16
  19. Pr Refills
    spacepen.com · Updated 2025-10-16
  20. Fisher Space Pen Warranty Information
    dayspringpens.com · Updated 2025-10-16
    More information about warranty claims for Pilot products.
  21. Repair/Replacement
    fsppromos.com · Updated 2025-10-16
    REPAIR or REPLACEMENTAt Fisher Space Pen Co. we stand behind our products and our pens are unconditionally guaranteed against all manufacturing defects....
  22. How the Fisher Space Pen Company Revolutionised Writing
    fisherspacepen.co.uk · Updated 2025-10-16
    Discover how the Fisher Space Pen Company transformed writing technology with its innovative pens, trusted by NASA and adventurers worldwide.
  23. Fisher Space Pen Co. – Mukama
    mukama.com · Updated 2025-10-06
    The history of Fisher Space Pen Co goes back to 1965 on the design desk of Paul Fisher. Since then, Fisher Space has become an iconic brand with its ...
  24. Clutch Space Pen - Fisher Space Pen
    spacepen.com · Updated 2025-10-06
    Pen Review. October 02, 2025. I had the ink swapped to a fine blue. Works ... Privacy PolicyTerms & Conditions. 2025 FISHER SPACE PEN CO. BOULDER CITY ...
  25. Original Astronaut Space Pen - Fisher Space Pen
    spacepen.com · Updated 2025-10-06
    Product review. April 22, 2025. The quality of the pen is very nice, but in ... 2025 FISHER SPACE PEN CO. BOULDER CITY, NEVADA, USA - ALL RIGHTS RESERVED.
  26. Pen 400B - Fisher Space Pen
    spacepen.com · Updated 2025-10-06
    The Bullet Pen has become not only an iconic design for Fisher Space Pen Co ... I don't care to use pens that are provided for the use of the general ...
  27. Fisher Space Pen Co. Shuttle Pen - Review — FIT4Recreation
    fit4recreation.com · Updated 2025-10-06
    Fisher Space Pen Co. Shuttle Pen - Review. March 17, 2017. The Fisher Shuttle series takes the AG-7 design and further refines it.
  28. Fisher Space Pen, Co. Apollo 11 50th Anniversary Bullet Space Pen ...
    luggageworldmn.com · Updated 2025-10-06
    Fisher Space Pen, Co. Apollo 11 50th Anniversary Bullet Space Pen. Fisher ... Write your own review... Only registered users can write reviews. Please ...
  29. TrueTimber Strata Camouflage Wrapped Cap-O-Matic Space Pen ...
    spacepen.com · Updated 2025-10-06
    In Stock. item number: M4TS...... 1 Review(s). 39.00. quantity. - ... 2025 FISHER SPACE PEN CO. BOULDER CITY, NEVADA, USA - ALL RIGHTS RESERVED.
  30. Fisher Space Pen Click 2025
    1stclassmovers.com · Updated 2025-10-06
    Fisher Space Pen - Clutch Review — The. Fisher Space Pen Original Astronaut ... Fisher Space Pen Co. Cap-O-Matic Pen. Fisher Space Pen Original Astronaut.
  31. Fisher Space Pen Removable Clip Ballpoint Pen, Blueberry with ...
    amazon.in · Updated 2025-10-06
    Fisher Space Pen Co. Customer Reviews, 4.7 out of 5 stars 143Reviews. Best ...
  32. Fisher Zero Gravity Space Pen - MyPilotStore.com
    mypilotstore.com · Updated 2025-10-06
    This advanced technology required Fisher Space Pen Co to develop a new and spe... ... Fisher Zero Gravity Space Pen. 10 Reviews. Average Customer Review: Write a ...

Status

Created 2025-10-06 COMPLETE
Updated 2025-11-19 COMPLETE
Published — PUBLISHED
Scored 2025-10-22 COMPLETE

Change Log

2025-11-19 UPDATED product metadata edits
2025-11-04 UPDATED product metadata edits
2025-10-22 UPDATED product metadata edits
2025-10-16 UPDATED product metadata edits
2025-10-06 UPDATED product metadata edits

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