Featuring SIG SAUER's exclusive side-mounted optic, the ROMEO1, the RX will ensure faster sight acquisition on target. Simply put, it will make a good shooter a great shooter. Shoot confidently with faster target acquisition and improved accuracy. Installed. Zeroed. And backed by the quality of the SIG name. 
The P320 RX Compact offers a smooth, crisp trigger to make any shooter more accurate, an intuitive, 3-point takedown and unmatched modularity to fit any shooter and any situation. Its compact frame is ideal for target shooting and home defense, as well as many concealed carry scenarios.  This modular, striker-fired pistol features a full-size grip, compact slide, and choice of contrast or SIGLITE Night Sights. Available in 9mm. Safety features include a striker safety, disconnect safety. 
CALIBER                                 9mm Luger
ACTION TYPE                             Semi-Auto
GRIP TYPE                               Modular Polymer
FRAME SIZE                              Compact
FRAME MATERIAL                         Stainless Steel
FRAME FINISH                            Stainless Steel
SLIDE FINISH                             Nitron
SLIDE MATERIAL                          Stainless Steel
BARREL MATERIAL                        Carbon Steel
ACCESSORY RAIL                          M1913
TRIGGER                                Striker
TRIGGER TYPE                            Standard
BARREL LENGTH                          3.9 in (99 mm)
OVERALL LENGTH                         7.2 in (183 mm)
OVERALL WIDTH                          1.4 in (36 mm)
HEIGHT                                 6.1 in (156 mm)
WEIGHT                                25.8 oz (731 g)