Thompson Center Pro Hunter Frame now has Weather Shield Protection. It's highly corrosion resistant finish is a tough as nails. The finish ia added to the barrel and other critical metal parts, this makes the gun nearly impervious to rust. Weather Shield is 50X more corrosion resistant than Stainless Steel alone. Thompson Center's master gun makers have also teamed up with limb saver to create the FlexTech stock system that was designed to absorb shock and reduce harmful recoil and vibration. It incorporates four synthetic recoil absorbing arches that operate similar to a leaf spring to create a crush zone and allow the stock to compress during the recoil process. The Pro Hunter rifle frame features a swing hammer safety that allows for easy access to the hammer spur, the speed breech quick release breech plug that can be easily removed by rotating it only 90 degrees, the Pro Hunter extractor that can be rotated left or right for easy access to the speed breech.