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About SPG. 

Who is behind this new gunsmithing business in Sheridan?

Meet Mike Miller. He’s a Navy Veteran who moved to Sheridan in 2017 with his family, following 20 years of service to our great nation. Starting Spartan Precision Gunsmithing allows Mike to follow in his father’s footsteps, who has been a master gunsmith for almost 50 years.


Mike is very dedicated to ensuring only the finest quality of services for this trade, so his initial focus will be on Cerakote application (certified in June 2018) and a limited spectrum of gun work (see Other Services).  He will be adding more services that span the larger range of traditional gunsmithing work upon the completion of further qualifications and certifications.


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