ProMag magazines are designed utilizing both traditional stamping and welding of heat-treated high carbon steel, and modern precision injection molding of mil-spec polymer compounds.  Every ProMag magazine is backed by a lifetime guarantee against manufacturer's defects. This ProMag Sig Sauer P320 Drum Magazine is constructed out of DuPont Zytel based polymer and the upper tower has full length steel internal insert stamped and welded like the factory magazine.
Specifications and Features:
Manufactured from Durable Polymer
Caliber: 9mm Luger
Capacity: 50 Rounds
Full Length Steel Internal Insert
Injection Molded Follower
Stainless Steel Spring
Made in the USA
Black
Fits: Sig Sauer P320 Models
    
            Specifications and Features:
Manufactured from Durable Polymer
Caliber: 9mm Luger
Capacity: 50 Rounds
Full Length Steel Internal Insert
Injection Molded Follower
Stainless Steel Spring
Made in the USA
Black
Fits: Sig Sauer P320 Models
                        
                            Looked cool but would jam every now and again                        
                    
                    
                    August 1, 2022
                    
                
                        
                            Looked cool but would jam every now and again                        
                    
                    
                    August 1, 2022
                    
                
                        Will this fit a p250?                    
                    
                    
                            Answer:
                            Yes sir, it should!
                        
                        
                    
                        Will this fit the p320 ?                    
                    
                    
                            Answer:
                            If it is chambered in 9mm, then yes this will fit.
                        
                        
                    
                        Will this fit a sar9x?                    
                    
                    
                            Answer:
                            No it will not.
                        
                        
                    
                        Would it fit a compact XDS 9mm mod 2?                    
                    
                    
                            Answer:
                            No it will not.
                        
                        
                    
                        Will this fit the M18 p320 compact ?                    
                    
                    
                            Answer:
                            Yes it should.
                        
                        
                    
                        Will this fit the p320 m17 ?                    
                    
                    
                            Answer:
                            Yes it will.