Front and back views of the PROOF Vanguard Pen in gray titanium, featuring a brass bolt-action clip and faceted tip.Animated exploded view of the PROOF Vanguard Pen showing the body halves, screws, piston rod, clip, Fisher ink cartridge and spring.
+155 Entries
PROOF Vanguard Pen
Sale price$155
262 reviews
PROOF Vanguard Pen Titanium front and rear views: black DLC titanium body with a brushed stainless steel clip, and the rear with the PROOF hex logo and Ti mark.Black titanium Vanguard Pen on a white marble desk next to a notebook, laptop and tortoiseshell glasses.
+245 Entries
PROOF Vanguard Pen | Titanium
Sale price$245
258 reviews

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Aluminum or Titanium?

Same carpenter's-pencil shape and bolt action. Choose the classic aluminum and brass, or the blacked-out titanium edition.

Front and back views of the PROOF Vanguard Pen in gray titanium, featuring a brass bolt-action clip and faceted tip.
PROOF Vanguard Pen Sale price$155
Earn 155 Entries
PROOF Vanguard Pen Titanium front and rear views: black DLC titanium body with a brushed stainless steel clip, and the rear with the PROOF hex logo and Ti mark.
PROOF Vanguard Pen | Titanium Sale price$245
Earn 245 Entries
Front and back views of the PROOF Vanguard Pen in gray titanium, featuring a brass bolt-action clip and faceted tip.
PROOF Vanguard Pen Sale price$155
Earn 155 Entries
PROOF Vanguard Pen Titanium front and rear views: black DLC titanium body with a brushed stainless steel clip, and the rear with the PROOF hex logo and Ti mark.
PROOF Vanguard Pen | Titanium Sale price$245
Earn 245 Entries
Body

6061 aircraft aluminum

Grade 5 titanium

Finish

Sandblasted, satin-anodized gunmetal

Brushed black DLC coating

Clip

260 brass

304 stainless steel

Piston rod

303 stainless steel

303 stainless steel

Mechanism

Bolt action

Bolt action

Ink cartridge

Fisher Space Pen #SPR4

Fisher Space Pen #SPR4

Ink change tool

1/16" hex key

1/16" hex key

Weight

1.4 oz

1.8 oz

van·guard

/ˈvanˌɡärd/ noun: a group of people leading the way in new developments or ideas.

The Vanguard wasn’t born in a boardroom. It began as a decade-old concept, revived by PROOF co-founder and lead designer as a hands-on build challenge — a personal test in machining, tolerancing, and technical mastery. What started as a training exercise became an obsession.

The final result? A pen that had to exist.

Ink Cartridge F.A.Q.

Writes upside down. Writes underwater. Operates from -30°F to 250°F.

The Astronauts on Apollo 11, and on every crewed space mission, used the AG7 Original Astronaut Pen - equipped with the same Fisher PR4, Black Ink, Medium Point cartridge as the PROOF Vanguard Pen.

1969 Camaro Z10 Giveaway: NO PURCHASE NECESSARY. Ends 12/13/26. Must be a legal US resident of the 50 US or DC at time of entry. Subject to Official Rules. Void where prohibited.