The Ontario 498 US Marine commando knife from Ontario Knife Company is issued and used exclusively by the United States Marine Corps.

The 498 Marine Knife features sharpened clip point blade, swedge and blood grooves in a non-reflective black zinc phosphate finish. The blade is hardened to 55-58 HRC. The handle is made from weather-proofed black leather. Includes a steel butt cap and black leather sheath.

Considered one of the most famous 'military' knives and respected across the world. These knives are no longer sold or manufactured and are considered a highly desirable collectors knife.