Brass & Copper Pocket Pro Pen

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It's really all about the patina

Somethings look better over time and that's one of the reasons we are excited about the copper and brass pocket pro pens. 

The Pocket Pro pens proudly accept over 100 refills in a convenient and compact package. It’s not just about the sheer number of refills that work in this pen that make it peerless. It's about designing and engineering the pen to have them all fit perfectly inside without any hacks, mods, or voodoo.

The body of the Pocket Pro seamlessly telescopes in length to accommodate different sized refills, while the auto-adjusting collet grip ensures a wiggle-free fit at the writing tip. Operation is as simple as unscrewing the body, popping in your favorite Parker or Rollerball style refill, and tightening it up. The design does the rest.

These pens are exactly the same as the Ti Pocket Pro pens, the only difference is the materials used for the body.

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Length (w/ shorter ballpoint refill installed) : 4.11 Inches / 104.5 MM
Length (w/ longer rollerball refill installed) : 4.65 Inches / 118 MM
Body Diameter : 0.38 Inches / 9.7 MM
Grip Diameter : 0.45 Inches / 11.6 MM 
Weight (empty) : Brass 1.3 oz / 32 grams - Copper 1.2 oz / 34 grams

Solid Brass / Copper : Pen body
Grade 5 Titanium : A
ll internal parts (no plastic parts)
Grade 4 Titanium : Pocket Clip (for proper tension)
Industrial Strength Silicone :  O-rings that go on the body of the pen

100+ Compatible Refills...You've Got Options! 

Most pens on the EDC market fall into two refill types, ballpoint refills or rollerball refills. The Pocket Pro pen completely changes the game and plays well with both styles.

There are way too many to list on the page so feel free to check out our google doc to see all the refill options you can use with these pens.



The refills listed below have been tested, are easy to find, and are extremely affordable. We are still ordering and finding more and more refills that work perfectly with our pen. The list is being updated as we find more that fit.

All brands, logos, and trademarks displayed and/or mentioned are used for informational purposes only and are sole property of each respected company and owner. No endorsement or ownership implied.


- 1 Pocket Pro pen
- 1 pen box (w/instructions and video link under the lid)
- 1 Schneider Gel 0.4 black gel ink refill (installed)
- 4 spare high-strength o-rings (just in case you ever need them)

Customer Reviews

Based on 35 reviews
Perfect EDC pen

This pen is simple design at its best. Everything you need, nothing that you don’t. Plus the copper patina looks great to boot!

have 2 already, and will probably get more

Love the look and feel of the pen, and the fact you can put in pretty much any refill.
I have 2 so far, each a different lenght/color refill, and I'm thinking about getting more to have different colors


Very satisfied with my purchase. Super fast shipping, well thought out design and perfect size for edc. Looking at the brass and titanium versions for next purchase.

Great pen and even better customer service!

This is a great addition to any EDC lineup! Very functional and versatile. I also want to comment on the customer’s outstanding! Definitely will be buying more BigIDesign items in the future.

My rugged Mont Blanc?!

This brass Pocket Pro Pen is amazing! I have a few Mont Blanc pen but I never feel comfortable carrying them in my pocket and/or  using them in a daily in out in out constant pocket usage day. If I lose it or breaks well, that would suck big! But, with this amazing Brass Pocket Pro I can still use and get the same amazing high standard I’ve come custom to by using my Mont Blanc refills in it and have a rugged durable comfortable reliable pen that can take a beating and hold up to what ever my day may bring with out any worries! Plus the more I use it the better the patina gets. And we all know it’s all about that “ patina, patina, patina!!!!”,. I know by the outstanding quality build this pen will last a lifetime and be passed down for many years to come. Great company great product. I will be buying more to come! If Mont Blanc is the Rolls Royce of pens this is the Bentley mixed with a military tank of pens! Love it!!!! I’m a man of my word and I don’t blow smoke up peoples a**es. I only use and stand by what I use and beleave in and use my self. This pen really is the best!

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