The nut holding the drawstring on this hand-mounted cross bow is made of iron. Sporting a sophisticated bronze trigger with safety notches. As a result this crossbows can be kept cocked and ready to shoot for some time. The prod is made of yew with the heartwood of the yew is on the inside of the bow while the sapwood is on the outside. This takes advantage of the natural properties of yew wood since the heartwood is able to withstand compression while the sapwood is elastic and allows the bow to stretch.