Professional firearms and concealed carry instruction from NRA-certified instructor Donald Emmack. Serving the Springfield and Ozark, MO communities with practical, real-world defense training.
Donald Emmack founded OXYS Practical Defense LLC to provide accessible, professional firearms instruction to law-abiding citizens in the Springfield and Ozark communities. His focus is on practical, real-world skills — not just qualifying on paper.
As an NRA-certified instructor, Donald teaches safe firearm handling, Missouri concealed carry law, defensive mindset, and responsible ownership. Courses are kept intentionally small so every student gets personalized attention and leaves with genuine competence and confidence.
Whether you're a first-time gun owner or a seasoned shooter looking to formalize your skills, OXYS offers a judgment-free environment where safety and effectiveness go hand in hand.
Select the course below that fits your needs and submit a quick inquiry — Donald will reach out personally to answer questions and get you scheduled.
Meet all State of Missouri requirements to obtain or renew your Concealed Carry Permit. Covers Missouri law, safe handling, marksmanship fundamentals, and live-fire qualification.
Personalized one-on-one instruction built entirely around your goals — beginner or experienced. Donald designs the session to meet you where you are, no judgment, no pressure.
A supportive, low-pressure course designed specifically for women. Practical self-defense concepts in a relaxed environment — no prior experience needed and questions are always welcome.
OXYS Practical Defense is affiliated with nationally recognized firearms and legal defense organizations, ensuring your training meets the highest standards.