The Archangel 7 round shell holder is for 12 gauge shells. This carrier mounts to the side of the receiver on Remington 870 shotguns. Precision molded polymer shell carrier and aluminum mounting plate securely hold 7 additional rounds for fast tactical reloads of the magazine tube. 
Features and Specifications:
Manufacturer Number: AA112
Seven Round Shell Holder
For: Remington 870
Patent Pending Individual Tension/Retention Adjustment For Each Shell
Shell Carrier Constructed Of Super Tough Carbon Fiber Filled Polymer
Anodized Aluminum Mounting Plate With Rubber Gasket
For Use with Military Length Forends
All Hardware Included
            Features and Specifications:
Manufacturer Number: AA112
Seven Round Shell Holder
For: Remington 870
Patent Pending Individual Tension/Retention Adjustment For Each Shell
Shell Carrier Constructed Of Super Tough Carbon Fiber Filled Polymer
Anodized Aluminum Mounting Plate With Rubber Gasket
For Use with Military Length Forends
All Hardware Included
                        
                            Fit perfect.  Held the rounds secure.  As advertised,  (rare these days)                        
                    
                    
                    January 10, 2024
                    
                Beast of a shell carrier...
                            
                        
                            Solidly built part. Popped right onto my 870. I like that I can adjust tension on each individual shell.Unfortunately I was not able to cycle the action on my Remington with this part installed. I decided to modify the shell carrier instead of my shotgun or exchanging it for another style carrier.  I used a band saw to cut off two carrier spots and I then sanded the carrier down and painted it black. If an option for a 5 round carrier is available at the time of this posting got with that. The extra shells will add a significant amount of weight. You can always carry more shells elsewhere.Unfortunately due to the nature of this design it holds the shell a little further away from the shotgun. It will affect balance slightly more than other lighter and sleeker carriers.                        
                    
                    
                    March 17, 2023
                    
                
                        
                            Frame is solid, easy to install and shells fit tight. Looks great on my Rem 870.                        
                    
                    
                    November 6, 2022
                    
                
                        
                            Frame is solid, easy to install and shells fit tight. Looks great on my Rem 870.                        
                    
                    
                    November 6, 2022
                    
                Fits h&r pardner protector pump with modification
                            
                        
                            I purchased this to mount to my hr pardner protector pump with the understanding that it is based on the 870. It mounted but I had to remove the slot closest to the forend, so it could retract enough to eject the spent shell. Works great after some fabricating. Pros: Holds shells very well                        
                    
                    
                    November 22, 2019
                    
                Works great, looks good!
                            
                        
                            Installed on the 870 with no issues. Parts are quality. Retention of shells is fantastic. My only gripe may not matter to some, but this kit requires 2 different Allen keys for install/takedown and retention adjustment. 1 key would have been nice...                        
                    
                    
                    September 9, 2019
                    
                Outstanding product.
                            
                        
                            I love everything about this shell carrier, its perfectly made. Ill defanitly be checking out Arcangels other products. Pros: Clean looking Cons: Not one                        
                    
                    
                    March 24, 2018
                    
                Will not need to buy another because it is made so wll.
                            
                        
                            Great product.Easy to install and fits perfectly.Has padded piece to fit between mount and weapon to prevent marring surface with tension screws for to adjust shell retention.Would definitly recommend to anyone who has 870 tactical with GG&G one round extension tube to carry same amount of shells in tube as carrier.More than happy with Archangel!                        
                    
                    
                    December 4, 2017
                    
                
                        Which side does this mount on?                    
                    
                    
                            Answer:
                            On the left side, sir. Here is a photo of one installed: https://i.ebayimg.com/images/g/dbEAAOSwGzBfQThG/s-l500.jpg
                        
                        
                    
                        Does this attach using the factory pin holes on the 870?                    
                    
                    
                            Answer:
                            Yes it does, very easy to install. Took me  about 15 mins  and that’s even Locktite the bolt screws.
                        
                        
                    
                        Distance between mounting holes? wanting to mount on turkish made shotgun                    
                    
                    
                            Answer:
                            The center to center distance between the two mounting holes is 1.99".