This guide details the installation of front and rear takedown pins on an AR-15 lower receiver. It covers the use of springs, detents, and optional threaded screws, including troubleshooting spring tension by trimming coils. Lubrication is recommended for smooth operation.
This guide demonstrates a practical method for installing the front pivot detent and spring assembly on an AR-15 using a magnet. The technique is particularly useful for steel pivot pins, where a magnet can hold the detent and spring in position, simplifying alignment and insertion. This method is presented as one of several tools used by the School of the American Rifle for efficient firearm assembly.
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