One of the most popular and versatile styles of scope on the market today, low-powered variable optics are tubular scopes that allow shooters to engage targets at close range with a 1x magnification (no magnification) or increase the magnification for distant targets as needed. The SIG SAUER TANGO series is an example of this LPVO design, comprising optics with 1-4x or a 1-6x magnification capability. Low-powered variable optics are popular options for AR-style rifles where targets can be anywhere from 10 to 500 meters distant in a single engagement.