ProMag has grown to become one of the largest US-based magazine manufacturers since they got their start in 1978.  ProMag's Glock 21/30 magazine is made right here in the U.S.A. by American workers. The magazine is constructed steel to give a long service life in the toughest conditions. For added reliability, ProMag also included a chrome silicon spring that resists taking a set no matter how long you leave the magazine loaded. Get shooting with ProMag. 
Specifications and Features:
This is not a Glock Factory Magazine, it is an after market Magazine
Caliber: .45 ACP
Capacity: 22 Rounds
DuPont Zytel Based Polymer Body
Full Length Steel internal Insert
Heat Treated Chrome Silicon Wire Spring
Made in the USA
    
            Specifications and Features:
This is not a Glock Factory Magazine, it is an after market Magazine
Caliber: .45 ACP
Capacity: 22 Rounds
DuPont Zytel Based Polymer Body
Full Length Steel internal Insert
Heat Treated Chrome Silicon Wire Spring
Made in the USA
                        
                            Waste of money. Glock 30 does not feed                        
                    
                    
                    October 26, 2023
                    
                jammer
                            
                        
                            It jams when shooting                        
                    
                    
                    October 18, 2022
                    
                jammer
                            
                        
                            It jams when shooting                        
                    
                    
                    October 18, 2022
                    
                
                        
                            Does not feed in my Glock 30 .45 WASTE OF MONEY! Was told that I can upgrade the spring but I don't feel that this is necessary for such a cheap mag. Do not buy!                        
                    
                    
                    September 28, 2022
                    
                
                        
                            Does not feed in my Glock 30 .45 WASTE OF MONEY! Was told that I can upgrade the spring but I don't feel that this is necessary for such a cheap mag. Do not buy!                        
                    
                    
                    September 28, 2022
                    
                Good Buy
                            
                        
                            ProMags are decent for the price                        
                    
                    
                    August 14, 2022
                    
                Good Buy
                            
                        
                            ProMags are decent for the price                        
                    
                    
                    August 14, 2022
                    
                Bad purchase
                            
                        
                            Magazine was loose in the gun it wiggled up and down from side to side. Consequently the rounds wouldn’t feed. I would not purchase another one. Also I could only get 21 rounds in it.                        
                    
                    
                    July 23, 2022
                    
                Bad purchase
                            
                        
                            Magazine was loose in the gun it wiggled up and down from side to side. Consequently the rounds wouldn’t feed. I would not purchase another one. Also I could only get 21 rounds in it.                        
                    
                    
                    July 23, 2022
                    
                
                        
                            Sucks so bad shot it twice now it jam’s every time                        
                    
                    
                    January 8, 2022
                    
                
                        Does this magazine fit a gen 3 Glock 21 SF?                    
                    
                    
                            Answer:
                            Yes
                        
                        
                    
                        Did this fit glock 30s gen 4 ?                    
                    
                    
                            Answer:
                            Yes this will fit.
                        
                        
                    
                        Will this fit my kriss vector 45acp?                    
                    
                    
                            Answer:
                            Vectors chambered in . 45 ACP are designed to accept standard Glock 21 pistol magazines So yes it should work.
                        
                        
                    
                        Does it fit glock 41?..                    
                    
                    
                            Answer:
                            Yes this will fit a Glock 41.
                        
                        
                    
                        Is this for the Glock 30 gen 4?                    
                    
                    
                            Answer:
                            Yes this will fit a Glock 30 Gen 4.
                        
                        
                    