AO scopes and SF scopes are two popular options for parallax correction in riflescopes. Both allow shooters to fine-tune focus for better accuracy, and understanding their differences helps you choose the right tool.
An AO scope adjusts parallax with a rotating ring near the front, offering precise focus control, especially beneficial for airguns shooters who need accurate parallax adjustments at close ranges. While the front-mounted adjustment may be less convenient for quick field changes, it's ideal for stationary shooting positions, making it a reliable choice for benchrest and precision work. AO scopes are also typically lightweight, which is advantageous for compact rifles or extended shooting sessions.
An SF scope, with its side-mounted dial, enables quick and convenient parallax correction without shifting position, making it popular among long-range shooters and hunters in fast-paced environments. While optimized for mid-to-long range, some models may offer limited focus at closer distances.
Our VIOC-05 VicOptics SOI 3-9x40 AO Scope is an excellent choice for shooters who value clarity, precision, and dependable parallax control.
It features a high-performance adjustable objective system ranging from 5 yards to infinity, delivering sharp focus even at very close range — an important advantage for precision shooting in confined spaces or casual plinking. Its side 5-gear green and red illuminated reticle ensures high visibility across a wide range of lighting conditions.
The Victoptics SOI series uses a 1-inch tube diameter, ensuring broad compatibility with standard mounting systems.
Explore more from Victoptics SOI series: SOI 1.5-5x20 (VIOC-01), SOI 2-7x32 (VIOC-02), SOI 3-9x40 (VIOC-03), SOI 4-12x40 (VIOC-04), SOI 3-9x40 AO (VIOC-05).
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