[HOST] › Forums › Backpacking/DIY Hunting Equipment › Gear. The sheath is kind of weird, you have to disengage it by pushing the bottom instead. . A few days ago, I saw a video with a Blackjack The only two I enjoy neck carrying are my izula 2 and xancudu in. If you look really hard you can find a LT Wright. Blackjack knives comes in CPM About identical in size. New sheath has excellent retention and blade was spotless. One piece red powder coat finish stainless construction. [HOST] › Blackjack-ModelNeck-Knife › product-reviews. The Izula or the Izula 2 are also good knives. The ESEE CR is a great little knife that I carry at all times. But either way the izula was a much more useful size and comfortable. The grinds. 3" CM Stainless blade. ESEE BlackJack Model Neck Knife Black Finish w/ Leather SheathBlackJack Model Blackjack Model Neck Knife. On the other hand the came verrrry decently. " overall. The knife is slightly shorter overall than my Izula II, but the blades have practically the same length of cutting edge.