TRUGLO and SIG recommend a call to SIG Customer Service (603) 610-3000 with the serial number of your P320 prior to purchase.
SIG will confirm the sight numbers (front/rear) that were factory installed on your pistol.
Below are the recommended sight sets for a SIG P320 pistols:
SIG P320 FULL-SIZE (9mm, .40, .357) #6 front/#8 rear
SIG P320 FULL-SIZE (.45 acp) #8 front/#8 rear
SIG P320 CARRY and COMPACT (9mm, .40, .357 and .45 acp) #8 front/#8 rear
SIG P320 SUB-COMPACT (9mm) #8 front/#8 rear
SIG P320 SUB-COMPACT (.40) #6 front/#8 rear
SIG P320 #8 front/#8 rear
| TFX Pro® | TG13SG1PC | Orange FOCUS⋅LOCK™ Front sight, u-notch rear, angled rear for emergency one-hand slide operation. |
| TFX® | TG13SG1A | White FOCUS⋅LOCK™ Front sight, square-notch rear. |
| Tritium Pro | TG231S1W | White FOCUS⋅LOCK™ Front sight, u-notch rear, angled rear for emergency one-hand slide operation. |
| TFO® | TG131ST1 | Green front sight, green rear square-notch rear. |
| TFO® Yellow | TG131ST1Y | Green front sight, yellow rear square-notch rear. |
| Tritium Only | TG231S1 | Green front sight, green rear square-notch rear. |
| Fiber-Optic Only | TG131S1 | Red front sight, green rear square-notch rear |
SIG P320 #6 front/#8 rear
| TFX Pro® | TG13SG2PC | Orange FOCUS⋅LOCK™ Front sight, u-notch rear, angled rear for emergency one-hand slide operation. |
| TFX® | TG13SG2A | White FOCUS⋅LOCK™ Front sight, square-notch rear. |
| Tritium Pro | TG231S2W | White FOCUS⋅LOCK™ Front sight, u-notch rear, angled rear for emergency one-hand slide operation. |
| TFO® | TG131ST2 | Green front sight, green rear square-notch rear. |
| TFO® Yellow | TG131ST2Y | Green front sight, yellow rear square-notch rear. |
| Tritium Only | TG231S2 | Green front sight, green rear square-notch rear. |
| Fiber-Optic Only | TG131S2 | Red front sight, green rear square-notch rear |
TRUGLO recommends to ONLY have these sights installed by a professional pistolsmith with appropriate sight installation tools.