Bolt Action Pen (Kilometrico Conversion)

A precision-inspired bolt-action pen designed to transform a standard Kilometrico cartridge into a robust, everyday writing instrument. This pen replaces the thin, flimsy Kilometrico body with a solid, well-balanced housing that feels confident and durable in hand that enhances the smooth writing Kilometrico cartridge. The bolt action mechanism offers controlled extension and retraction with a satisfying, deliberate action, while the knurled grip section provides excellent traction and control during extended writing.Built for daily use, this pen combines comfort, grip, and mechanical precision in a clean, purposeful form, transforming a basic cartridge into something far more substantial. Highlights:Uses standard Kilometrico cartridgesReplaces the thin, flimsy original Kilometrico bodySmooth, reliable bolt-action mechanismKnurled grip for enhanced control and comfortBalanced weight for everyday writing Materials:~5mm long M3 Screw~30mm x 3mm spring (I sourced mine from Bic 4 colour pe