Henning Group Tanfoglio / EAA Witness Conefit Guiderod 4.2" - Long Slide (H081-42)

The development of the ConeFit was born from need rather than just trying to be creative. As you can see from the pictures of my 2007 Limited HC 40 S&W, the factory guiderod has pushed the material of the frame back and in. Take a look at your own gun and you'll notice how small the guiderod notch is. The first experience of the problem came for me during the Texas State Limited Championships several years back. I needed to disassemble the slide from the frame to clean it. I was almost not able to get it off and had to use a gunsmith hammer to tap the slide off. At first I had no idea what the problem was and naturally started to worry. After a few minutes of investigation I noticed how the guiderod notch had protruded on the inside. No wonder why the slide was so hard to get off.. the lug of the barrel has to slide past this point. The solution was to take a file and remove the metal. Over the years you can see from the pictures how bad the notch has changed. The solution was to create a new guiderod that didn't cause this kind of frame molestation. Using the cone shape part of the frame/slide interaction point, we created a cone on the guiderod to match. This has increased the surface area hugely and solved the problem. For more info check out http://henningshootsguns.com/pages/2009_guiderod.html