Caleb Downing 07.05.20 Dave Propri SDI is really worth the time and worth the investment. I don’t know where you’d get this caliber of education and knowledge in the package you can get it in at SDI. RELATED STORIES Firearms Tech SDI News NRA Annual Meeting 2023 Roundup read more Firearms Tech Firearms Cleaning Tutorials: M1A (M14) Cleaning Guide read more SDI News SALUTE Veterans National Honor Society read more