Ink Refill Guide

Standard Length Bolt Action and Side Click Standard. The Slim Bolt Action and Slim Side Click have much the same compatibility, but items with ** will not work.

Comes with Pilot G2 0.7mm, America’s #1 selling ink gel pen

Without Modification
Caran D'ache Rollerball
Pilot Frixion
Cross Porous-Point**
Pilot G2 Pro
Faber-Castell Rollerball**
Pilot G6
Lamy M63
Pilot G-knock BeGreen
Monteverde Rollerball**
Pilot Hi-Tec-C "Cavalier"
Ohto Ceramic Rollerball**
Pilot Precise (Hi-tecpoint)
Pelikan Rollerball 338**
Pilot Precise V5 and V7 RT (Hi-tecpoint)
Pilot Acroball 0.5mm

Pilot Precise Gel BeGreen

Schneider Topball 850

Requires Trimming - Required amount in Milimeters
Mont Blanc Fineliner (2mm)**

Pentel Energel (1mm)**

Mont Blanc Rollerball (2mm)**
Pentel Energel Needlepoint (1mm)**
Uniball Signo 307 Gel (2mm)
Uniball Signo RT Gel (2mm)
Uniball Signo 207 Gel (2mm)
UniBall Signo RT1 Gel (2mm)
Uniball Jetstream SXR (2mm)**

Short Length Bolt Action and Side Click Short

Comes with Schmidt EasyFlow 9000 Pen Refill (Medium)

Without Modification
Faber-Castell Ballpoint Penatia Ballpoint
Fisher Space w/ PR4 Adapter Pentel Ballpoint
Foray Gel
Moleskine Roller Pen Gel UniBall Jetstream SXR-600
Monteverde Ballpoint Schmidt P8900 Super Bowl
Monteverde P42 Ceramic Gel Capless Schmidt P900 Ballpoint
Monteverde Soft Roll P13 Ballpoint Schmidt P950 Megaline Pressurized Ballpoint
Monteverde Soft Roll P15 Super Broad Schneider Express 735 (needs enlarged tip hole)
OHTO Needlepoint Ballpoint Schneider Slider 755 (needs enlarged tip hole)
OHTO Extra-Fine 0.5mm Ballpoint Sheaffer T Ballpoint
Parafernalia Ballpoint Stabilo Ballpoint
Parker Ballpoint Tombow BR-ZLM Ballpoint
Parker Gel Quink Visconti Ballpoint
Parker Quinkflow Ballpoint Visconti Gel
Pelikan Giant Ballpoint 337

Yafa Gel Ballpoint

Requires Trimming
Pentel Energel** Pilot Juice
Pilot Acroball Pilot Precise V5  and V7 RT (Hi-tecpoint)
Pilot Frixion Ball Pilot Precise Gel BeGreen
Pilot G2 Uniball Signo RT Gel
Pilot G2 Pro UniBall Signo RT1 Gel
Pilot G6 Uniball Signo 207 Gel
Pilot G-knock BeGreen Uniball Signo 307 Gel
Pilot Hi-Tec-C "Cavalier" Uniball Jetstream

 

Bolt Action Mini and Side Click Mini

The Bolt Action Mini comes with a Pilot G2 mini.

The Pilot G2 Mini is about 0.7” shorter than the Parker style refills and is still about 0.2" too short for the Fisher Space Pen refill without the adapter on the back. It’s a weird oddball of a refill and about the only thing we have found that works is getting a 3D printed adapter that allows you to use D1 refills:
https://www.shapeways.com/product/4QDE7LWSL/adapter-pilot-g2-mini-to-d1-mini
One day we will get a 3D printer and start offering these from our website, but for now you can get one from the link above. There are a few good D1 refills, but my favorite is the Jetstream version you can find here:
https://www.jetpens.com/Uni-SXR-200-05-Jetstream-Ballpoint-Multi-Pen-Refill-D1-0.5-mm-Black/pd/12287