The Protech TR-5 is fully named the "Tactical Response" knife. This is a big knife for big jobs. The blade is a full 3.25 inches of S35VN steel and has a stonewash finish. The handles are aluminum and have been anodized into a black color. The knife has a safety switch on it in order to lock the blade safely closed when not in use. This is a hard working knife.
Please check your local laws regarding the purchase and carry of automatic knives.