The Ontario Ranger Model 4.5 is a full‑size fixed‑blade knife engineered for demanding field use where strength, reach, and reliability are critical. Measuring 10 inches overall, it features a 5‑inch drop‑point blade constructed from 1095HC carbon steel, heat treated to 57–59 HRC for excellent toughness and dependable edge retention. The blade uses a flat grind for efficient cutting performance and is finished with a black coating that reduces glare while helping protect against wear. With a blade thickness of approximately 0.19 inches, it provides a solid balance of durability and cutting control for heavier tasks.

The handle is constructed from OD green canvas Micarta, offering a durable, moisture‑resistant grip with secure handling in both wet and dry conditions. Full extended tang construction enhances strength and balance, while an integrated lanyard hole adds retention options. The knife includes a Kydex sheath with a dangler attachment for flexible carry. Made in the United States, the Model 4.5 is built for rugged outdoor use, supporting camp work, survival tasks, and general heavy‑duty applications.