January 28, 2020
If you don't have a Gas Block Genie, and you are installing a gas block on your AR barrel, you are making life hard for yourself. But an even harder task is installing the bolt hold open pin on the lower. I sometimes wonder of Eugene Stoner was a secret sadist. But now the Gas Block Genie people have come up with another must-have product, the Roll Pin Wizard.
It uses the rear takedown pin hole as a locator to install an alignment fixture, allowing you to keep the pin punch in line with the roll pin while you install the pin. Definitely one of those "Why didn't I think of that?" helpers.