The parallax knob (or target focus knob based on what your scope’s maker calls it) moves The situation in the focus on’s impression in your scope. This wide magnification range increases precision for short to medium ranges with Completely no parallax in the slightest degree. The 1-piece made optic system https://archermcqbo.topbloghub.com/35082367/the-best-side-of-white-light-optical-sights