Microtech Luminary Deadpool Tritium Button Insert Signature is a precision accessory for your OTF out the front knife. It replaces your standard button insert with a glow-ready tritium core for low light use. Built for confident activation, the insert supports smooth, reliable deployment. The signature Deadpool inspired style adds a distinctive look to your Microtech Luminary setup. Tritium illumination helps you locate and operate your switch quickly, even in dim conditions. Durable construction is designed to hold up to everyday carry and regular handling. If you want better visibility and a refined upgrade, this tritium button insert is an excellent choice.