[tal35]

I noticed that Midwest listed 3 different part numbers for barrels for the five seven pistols. Two of them are discontinued , what are the differences between them and are they interchangeable? How do you tell the difference to determine which one is in your pistol?

 

[LESTER]

How do you tell the difference to determine which one is in your pistol?

FsN Models

 

[LESTER]

The Barrel assembly MGW shows in stock is for the current Five-seveN MKII

 

[Buffman]

The current MK2 barrel is backwards compatible with the USG, but the original USG barrel is not forwards compatible with the MK2