If you ask any SMCS Risk person involved in our firearms training & sales division, they will tell you that the best sub-compact and micro-compact pistols currently on the market are the Sig Sauer P320 Sub-Compact and the Sig Sauer P365 Micro-Compact pistol.
Sure, readers may say that we are biased because we partner with Sig Sauer in Cambodia, however our firearms staff have been involved with firearms in a professional capacity for many years, and understand what features make a great compact firearm.
So why are the P320 subcompact and P365 micro-compact such great pistols and what are there differences? Below are the specifications that you can use to compare against other pistols on the market.
P320 Specs
                
P365 Specs
                      CALIBER                        9mm Luger
                      ACTION TYPE                Semi-Auto
                      FRAME SIZE                  Micro-Compact
                      FRAME FINISH              Nitro
                      FRAME MATERIAL        Stainless Steel
                      SLIDE FINISH                Nitro
                      SLIDE MATERIAL          Stainless Steel
                      ACCESSORY RAIL        Sig Rail
                      TRIGGER                       Striker
                      BARREL LENGTH         3.1 in (78 mm)
                      OVERALL LENGTH       5.8 in (147 mm)
                      OVERALL WIDTH          1.0 in (26 mm)
                      HEIGHT                         4.3 in (109 mm)
                      WEIGHT                        17.8 oz (500 g)
But in our professional opinion, what really makes these two pistols stand out from the crowd?
Sig Sauer P320 Sub-Compact – what makes this pistol so good is that if you are a professional who may want to change the size of your pistol, depending on the variance of your duties, without having to purchase different size pistols, then we recommend the P320. You can purchase the P320 in full size and then purchase a sub-compact grip module for about $40 and convert your full size 9mm into a sub-compact 9mm in under 2 minutes. Its that simple! So today you are working as a uniformed police officer and need to carry a full size or carry size 9mm, but next week you will be assigned to covert plain clothes duties, and need a concealed sub-compact pistol, then the P320 is the best 9mm pistol in the market for you.
                                                                                                                                                                                    
Sig Sauer P365 Micro-Compact – what makes this pistol so good is it is the only micro-compact pistol in the market that has a 10+1 full magazine capacity. That means if you are a professional who either needs to carry a concealed micro-compact pistol on your ankle or in an underarm holster or even in your pocket, or you just want a micro-compact secondary pistol, with the full 10+1 round capacity, then the P365 is the best 9mm pistol in the market for you.