175 LBS - 285 FPS. The MK-300B crossbow is a medium-powered model in our compound range. The limbs of this crossbow are stiffer than the limb of a recurve crossbow. To tension these limbs, a special compound system is necessary. A high velocity can be achieved because this system works like a pulley. In addition to a comfortable thumbhole stock, this MK-300B is featured with a foot stirrup and an automatic safety. Besides that, this crossbow comes with an adjustable sight, a red dot, a sling and a quiver. Because of its devastating power, this crossbow is not suitable for beginning shooters.