Your Instructors

With so many self-styled firearms instructors out there, how do you know who to choose? Look no further if you want the most competent and friendly instructors, with national experience, and local recognition.​  We belive passionately that even the BEST shooters in the world have the capacity to get better. Our constant pursuit of the most contemporary training from world reknowned instructors  allows ONE on ONE Firearms to bring the most modern and relevant firerarms training to our students.

Joe Truesdale
Joe Truesdale was raised in the shooting sports world, and served in the US Army, Military Police Corps as an Investigator.  He’s a competitive action pistol and multi-gun shooter. Competing in State, Regional, National and World Championships. 

He’s also trained at some of the best facilities in the country like Front Sight, where he was also an instructor, the US Training Centers (BlackWater USA), United States Shooting Academy and with many of the top instructors in the nation.

Joe is a Certified California Department of Justice Instructor, an NRA Range Safety Officer, Certified NRA Instructor, IDPA Safety Officer and Multi-State Concealed Carry Weapons instructor.  He believes strongly in the need to constantly train and improve his shooting skills and so should you, because "You don't know what you don't know".


Sean Young
Sean has been an avid shooting enthusiast since his early teens. He's an active hunter and competitive shooter. He's trained extensively over the past several years with ONE on ONE Firearms, Mike Seeklander (Shooting-Performance), and several other firearms instructors in the pursuit of continuously improving his defensive and competitive firearm skills.


As a competitive shooter, he has proven to be a top contender at the local, state, and national levels. 2014 marks his third consecutive trip to the IDPA National Championship. He regularly competes IDPA, USPSA, and 3-Gun competitions.


Sean has been a training specialist in the corporate world for over 15 years, with tremendous experience in coaching and delivering effective adult learning. He is a Certified California Department of Justice Instructor, an NRA Certified Firearms Instructor, and an IDPA Safety Officer.



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