Grip Angle plays an important role this is one feature I like about the Springfield Armory Hell Cat I bet much thought in its design was grip angle. It points at the target naturally like point your finger try eyes closed point at a target then open your eyes the sights are on the target. "Grip angle of the Springfield Hellcat allows for instinctive sight alignment with the U-notch rear and front sight." There are generally two different grip angles available, which for the sake of this discussion we will call the 1911 grip angle and the Glock grip angle. The 1911 grip angle (all 1911 variants, Springfield XD, etc.) is more nearly square to the slide (about 18 degrees off square), while the Glock grip angle (Luger, Steyr M series, H&K P7, Ruger Mk II, etc.) is more raked (about 22 degrees off square).
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