In development of Intruder a significant role was played by the leading Russian knife forum rusknife.com, especially by A. A. Mak, respected defense industry professional, collector and researcher of short-bladed weapons, author of a number of books on military knives and blade weapons, and D. E. Samsonenko, Lt. Col. of the Russian Internal Police in retirement and knife expert. The daring name of the knife says a lot about it. We managed to combine aggressiveness, grace and great work properties. The handle fits tight in a hand; it gives a good grip with the palm. The guard does not allow fingers to slip onto the cutting edge even during serious work loads. Flat grinding and well-balanced 440C stainless steel make this knife reliable and not requiring much maintenance. Light and durable MOLLE compatible Kydex sheath features a highly versatile multi-position platform with a rotatable clip, allowing a variety of carry options at different angles.