Posted January 24, 2019 2:00 pm by Comments

By TTAG Contributor

This article was contributed by Warren Wilson, a lieutenant with metropolitan police department in Oklahoma. He is a former SWAT team leader, current firearms instructor and writer. He has been a full-time law enforcement officer since 1996. For the uninitiated, “derp” is a word that’s been embraced by the shooting and self-defense community to describe a […]

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