This guide, presented by Steven and Caleb from Brownells on 'Smyth Busters', demonstrates how to un-stake an AR-15 castle nut. The common myth that staking is permanent is debunked, showing that a staked nut can be removed with minimal effort using an armorers wrench. The video emphasizes that staking prevents the castle nut from vibrating loose during use and recommends replacing the endplate upon reinstallation.
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