Lead Instructor

Ken Grommet

Lead Instructor and Co-Owner Range 54, Ken graduated high school and immediately joined the United States Marine Corps. After the Marines Ken spent the next 33 years in law enforcement and retired in 2015, at which time opened Range 54. Ken worked for the Derby Police Department where his duties there included patrol officer, DARE Officer, SRO, SWAT Team Member, bicycle officer, Range Master, Armorer, Investigations Supervisor and Patrol Sergeant, SWAT team leader. Ken earned three Medals of Valor, four Distinguished Service Medals, a Lifesaving award, officer of the year, two State awards and numerous other distinctions.

Ken has been involved as a trainer for many years. He is a KLETC certified firearms instructor and served as a Range Master and Armorer until his retirement in 2015. Ken has a degree in Criminal Justice from Friends University, a Police Generalist Instructor Certificate from The Department of Homeland Security, completed the ILFEE Firearms Masters Development Course. Not only was Ken responsible for training police officers and SWAT officers for the department, he also had the opportunity to be a guest instructor at KLETC teaching both firearms and tactics.

Ken is not only an instructor but he is a student of his craft as well. He has received hundreds of training hours in firearms and tactics. Ken has had the opportunity to train with distinguished agencies like the ATF, DEA, USAF, USMC, Department of Energy, GSG9, The Department of Home Land Security, and several Police, and Sheriff Departments throughout the reign,

During his off time, Ken likes to take his passion of shooting to the field where he enjoys upland game bird hunting.

Assistant Director of Training

Derek Dunn

Derek graduated high school, and joined the United States Air Force. Derek served six years as a Command and Control Battle Management Operations Specialist with the Kansas Air National Guard’s 134th Air Control Squadron. Derek was awarded the Airman of the Year award for the State of Kansas in 2006. During his tenure with the Air National Guard, Derek advanced to the rank of Staff Sergeant and proudly served as a member of the base Honor Guard. Derek’s military service included training missions across the United States, responding to State emergencies, and a deployment to Iraq in support of Operation Iraqi Freedom. While serving in the Air National Guard, Derek graduated from Southwestern College with a Bachelor of Science in Business Management.

Derek has proudly served as a member of the Derby Police Department since 2009. Derek has served in the roles of Patrol Officer, School Resource Officer, Master Patrol Officer, Field Training Officer, and is currently assigned to the Investigations Division as a Detective. Derek has worked closely with both local and federal law enforcement agencies to conduct criminal investigations. Derek has received multiple letters of commendation, a distinguished service award, and was named the Officer of the Year in 2014. Derek’s is also responsible for armoring of the Department’s Sig Sauer sidearms and AR-15 rifles. Derek serves as one of the Department’s KLETC certified Law Enforcement Firearms and Tactics Instructors on handgun, shotgun, and rifle. Derek brings his real world experience with weapons, tactics, and use of force into the Range 54 training environment, providing our customers with first hand knowledge on a multitude of topics. Derek currently serves part-time as Range 54’s Assistant Director of Training.

When he is not working, Derek spends as much time as possible with his family. Derek also enjoys maintaining a physically fit lifestyle, and enjoys competing in swimming, biking, and running events across the country.

Training Instructor

Tom Chancellor

Tom graduated from Wichita Southeast High School and joined the U.S. Army where he served in Operation Desert Storm as an M.P. Tom began his law enforcement career as a Detention Deputy for the Sedgwick County Sheriff’s office, from 1989 to 1995. In 1995, He joined the Derby Police Department. While with the Derby Police department, Tom was certified as a Defensive Tactics Instructor, a SIG Armorer, as a School Resource Officer and as a Drug Recognition Expert. Tom retired from the Derby Police Department in 2012.

Since that time, Tom has gained additional certifications as a Glock Armorer, as an NRA certified Basic Firearms Instructor and has been certified by the Kansas Attorney General as a Concealed Carry Instructor.

Tom enjoys long walks on the beach, cuddling and working in his pumpkin patch.

Training Instructor

Brooke Jackson

Brooke is one of the Women’s Only Basic Pistol course instructors. She loves this class the most because not only does it produce safer, more accurate female shooters, but gives a sense of empowerment and confidence to the ladies that take the class. Brooke grew up around guns and began shooting at an early age. She is a NRA and Kansas Carry Conceal Certified Instructor. Aside from teaching, Brooke is also a nurse and a mom to four children. In her free time (ha!) she enjoys running, being outdoors and spending as much time with her family as she can.

Range 54 Staff

Other Instructors

Stuart Bruce

US Navy Veteran, US Department of Energy, and NRA Pistol Instructor

Tiffany Romero

NRA Pistol Instructor

Kerry Cox

Co-Owner Range 54 and NRA Pistol Instructor