While you are on the site, in your browser find and click "Add to Home Screen" A CGN beaver app icon will then be created to your phone that is directly link to the site.
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I have the standard trigger on both of my T-3s, but I had the single set trigger on my Sako 85 Varmint Stainless. I found that I preferred not to use the set trigger at all. The good news is, that it works great even when not set.