*Made to order and machined completely in-house by our small shop — please allow 1-2 weeks lead time before your order ships.*

The Detonator takes the Bolt Action Pen v.03 and mills the full barrel into deep cross-cut milling — a fragmented grid that runs tip to clip. Every cell is machined to leave dense, angled edges that lock into the hand with a tactile grip.

Underneath the grid, it is the v.03 in full. The adjustable set screw is unchanged: with a single internal adjustment the pen accommodates virtually any refill on the market — from Parker-style to Pentel Energel and everything in between — each dialed to its ideal length without swapping a single component. Paired with nose tips reamed to size (2.4mm / 2.5mm / 2.6mm), it eliminates the tip wiggle long associated with multi-refill pens.

Pair with the Detonator medallion, a machined badge with frag channels to showcase the pen as a desk rest, or pair with the solid medallion as a fidget and worry-stone.

Available in 303 stainless steel, C693 brass, C145 copper, 6Al-4v grade 5 titanium, and 702 zirconium.

Confirmed compatible refills:

- Pentel Energel (2.4mm)

- Parker/ISO G2 standard (2.5mm)

- Pilot Juice Up (2.5mm)

- Uni Signo UMR-38 (2.4mm)

- Zebra JLV 0.5 (2.4mm)

- Pilot Precise V5 (2.5mm)

- Schneider Topball 850 (2.5mm)

- Schmidt P8126 (2.6mm)

- Monteverde P42 (2.5mm)

- Parker-style standards

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U.S. ORDERS
$5 Standard shipping with USPS for orders under $100. Free Standard Shipping (3-8 business days) for orders over $100 for all U.S. Domestic Orders, excluding the non-contiguous states of Hawaii and Alaska and off- shore United States territories, completed with USPS First Class Mail.

INTERNATIONAL ORDERS
$15 for international shipping completed with USPS (7-21 business days). Free international shipping for orders over $200.