RESEARCH-BASED PRODUCT FEATURE
Based on published manufacturer specifications. Gunfire Magazine has not physically tested this product for this article.
The Brunton TruArc 3 is a compact baseplate compass with a clear purpose: a physical map tool that does not depend on a charged screen. Brunton lists it as made in Riverton, Wyoming, and gives its weight as 31 grams, or 1.1 ounces.
The published package
The company lists dimensions of 2.5 by 3.5 by 0.6 inches, inch and millimeter scales, a global needle and a two-degree-resolution azimuth ring. These are manufacturer specifications, checked November 2, 2026.
Brunton also identifies tool-free declination adjustment. This preview notes the feature without providing navigation instructions or treating its presence as proof of a user’s competence.
A backup tool still needs knowledge
Our assessment is that the strongest reason to consider a physical compass is its role in a wider navigation plan. Its value cannot be established by weight alone, and carrying it does not automatically make a person able to navigate.
A useful demonstration would consider the legibility of the scales, comfort in the hand and compatibility with the maps a person actually carries. Formal navigation instruction and practice are separate from a product specification.
What this preview can establish
Gunfire has not independently tested accuracy, temperature response or durability. We do not give the TruArc 3 a star rating or call it a field-tested winner. The current factory record establishes the design and dimensions described here; a hands-on review would need an identified sample and reported observations. Continue with equipment previews and outdoor equipment coverage.
Representative baseplate-compass photograph: a Decathlon model. This is not the Brunton TruArc 3 and does not establish that product’s dimensions or features. Displayed at reduced size. Photo: Tiia Monto; CC BY-SA 4.0 Source: https://commons.wikimedia.org/wiki/File:Compass_with_strap.jpg License: https://creativecommons.org/licenses/by-sa/4.0 Sources checked November 2, 2026.
Prepared for Gunfire Magazine with AI assistance from the linked source material and the publication’s editorial brief. Specifications and manufacturer claims are attributed to their original sources.