Teufelshund Tactical Heckler and Koch HK4 Armorer and Operator Review
This video is a review of Heckler and Koch's first production pistol, the HK4, provided from my extensive background as an Armorer and Instructor of Heckler and Koch weapons.
Visit www.teufelshundtactical.com for all your Heckler and Koch service and training needs.