New for 2016, the Gemtech Tracker a light weight silencer for hunting. The Gemtech Tracker, was made for a military program in the Middle East for fighting terrorists. The US version is essentially the same silencer but with Gemtech markings and styling. At 7.9 inches and 11.3 oz the Gemtech Tracker is perfect for light weight mountain rifles or extended hunting trips. The Tracker is rated for up to 300 Win. Mag on barrels 24 inches or longer.