The Columbia River M21 Special Forces pocket knife is one of the most requested by law enforcement. The blade is a super-durable razor-sharp edge with a serrated edge for the best versatility when cutting through just about anything. The unique quality is additional Carson Flipper which opens and acts as an additional blade guard. Columbia River has also put a black titanium nitride blade coating with a low-reflectance finish to protect against rust and corrosion in any weather you can endure [...]