Nitecore NTP31 Aluminum Multifunctional Bolt-Action Tactical Pen

Design and materials

The Nitecore NTP31 combines a solid aluminum body with a thoughtfully engineered bidirectional bolt design. This multitool pen lets you switch between a smooth writing experience and a tungsten tip in seconds, making it a practical companion for daily tasks and unexpected moments.

At the heart of the tool is a secure lockout system. A slider sits in a distinct L-shaped groove, allowing you to quickly select and retract either the pen refill or the tungsten steel tapered tip. The tungsten tip is exceptionally hard, measured at 89-92.5 HRA, placing it among the toughest common points outside diamond, which informs its potential for robust use while keeping the form compact.

How it works

The NTP31 is built around a few core ideas: a bidirectional bolt mechanism for versatility, a reliable lockout slider for secure operation, and a rigid stainless steel clip that keeps the pen within easy reach. The tungsten tip and the writing core share the same sleek profile, so you can carry a single tool that covers two essential functions without adding bulk.

• Bidirectional bolt design enables quick switching between refill and tip
• Lockout slider in an L-shaped groove for secure, precise selection
• Tungsten steel tapered tip offers high hardness and durability
• Stainless steel clip keeps the NTP31 clipped to a pocket, shirt, or bag

Everyday carry and use cases

The NTP31 is designed to be an unobtrusive part of your daily kit. Its slim profile, combined with the aluminum body, supports a balanced feel that remains comfortable in hand. The pen can support note taking during meetings, field notes, or quick sketches, while the tungsten tip provides a robust point for tasks that benefit from a hard contact surface. Its design also aims to pass through standard security screening smoothly, making it a sensible option for travel, campus use, or on-site visits.

Whether you are coordinating with teammates, documenting measurements, or simply jotting down ideas, the NTP31 offers a practical, two-in-one approach. The combination of writing capability and a hard point can adapt to a range of on-the-go needs, all within a compact and durable package.

• Note-taking during meetings, fieldwork, or study sessions
• Light marking on durable materials when a precise point is needed
• Everyday carry for professionals who value preparedness and efficiency
• Discreet, accessible tool for on-the-go writing and marking

Who benefits

Writers, technicians, students, travelers, and professionals who want a single tool that covers writing and quick-point tasks may find the NTP31 especially handy. The secure clip and secure operation support a dependable carry, while the two-in-one design reduces the number of separate tools you need to bring along.

In short, the aluminum construction, hard tungsten tip, and reliable clip come together to offer a versatile option for those who value practical versatility without extra bulk. The NTP31 stands ready for everyday use, travel, and routine tasks where a quick note or a precise point can matter.