Terms of use
By accessing GunOptics.co you agree to these terms. If you don't agree, please don't use the site.
Educational content only
Everything published here — guides, comparisons, calculators, and commentary — is general educational information about optics and related accessories. It is not professional gunsmithing advice, not a substitute for a manufacturer's manual, and not legal advice. Always follow the instructions and torque specifications published by your equipment's manufacturer.
The zero calculator and other tools
Our calculators perform standard angular-measurement math (true MOA and milliradian). Results depend entirely on the numbers you enter and on your equipment tracking as specified. Always confirm any adjustment with live fire under safe range conditions. We accept no liability for outcomes at the range or in the field.
Legal compliance is your responsibility
Firearms, and in some jurisdictions certain accessories such as weapon lights and lasers, are regulated. You are solely responsible for knowing and complying with all federal, state, and local laws that apply to you, including purchase, possession, transport, and use.
No warranties
The site is provided "as is" without warranties of any kind, express or implied, including accuracy, completeness, merchantability, or fitness for a particular purpose. Product availability and pricing shown on retailer sites can change at any time and are controlled by those retailers, not by us.
Limitation of liability
To the maximum extent permitted by law, GunOptics.co and its operators shall not be liable for any direct, indirect, incidental, consequential, or special damages arising from your use of this site or reliance on its content.
Affiliate links
This site earns commissions through affiliate partnerships, described in full on our disclosure page. Purchases you make on retailer sites are contracts between you and those retailers.
Intellectual property
Original content, diagrams, and tools on this site are the property of GunOptics.co. You may link to and quote brief excerpts with attribution; wholesale reproduction requires permission.
Changes to these terms
We may revise these terms at any time; continued use of the site constitutes acceptance of the current version.
Last updated: August 2026