Microtech 121-2BL Ultratech Partially Serrated S/E OTF Automatic Knife Blue – Black

This model typically features a single‑edge blade with partial serrations, combining a straight cutting edge with serrated sections for added versatility. Ultratech knives are known for their OTF automatic mechanism, where the blade deploys and retracts using a thumb slider on the handle, as well as their high build quality, tight tolerances, and premium blade steels that can vary by production run.

The blue and black handle color scheme is one of several finishes Microtech has produced, and overall dimensions and materials may differ slightly depending on the specific version. Because automatic knives are regulated in many places, ownership and carry of this type of knife can be restricted depending on state or local laws, so it is important to verify legality before purchasing or carrying one.