CSEC has a number of user groups that hold events or provide training at CSEC, including:
- Action Pistol Group (APG)
- FATCAT (719)850-2799
- Common Sense Defense (970)261-4035
- Crosswind Precision Marksmanship Academy (970)589-2516
- D-CO (910)690-2847
- D5 OPS LLC Contact: @D5OPSLLC (Facebook) / d5opstraining@gmail.com (Email)
- Defenders USA (970)986-0774
- International Defensive Pistol Association (IDPA) (870)545-3886
- Kleiber Investigations and Training (970) 846-8588
- Rick’s Pistol Training (970)640-9707
- Alan Siering (910) 603-3677
- Steel Challenge Shooting Association (SCSA) (360)855-2245
- Tactical And Practical Solutions (TAPS), LLC (970)901-1144
- United States Practical Shooting Association (USPSA) (360)855-2245
- Western Colorado Precision Shooters (970) 270-5936
- and more…