The SIRT 20 has the functional features of a SIG P320.  The SIRT 20C has the functional features of a SIG P320 Carry.  Not affiliated with SIG SAUER.
 
Safe, effective, and innovative, the Shot Indicating Resetting Trigger (SIRT) Training Pistol was developed by shooters for shooters, to complement, not replace, live fire training. The SIRT Training Pistol brings together a host of patent pending technologies critical to improving shooting accuracy while addressing issues of cost and liability.
 
Each Sirt Training Pistol Contains the Following:
1 SIRT Training Pistol
1 Training Magazine
Trigger Adjustment Tool
Laser Windage and Elevation Adjustment Tool
 
*Case not included with SIRT.