I just found this one out.
In Battlefield 4, if you use the Duckbill choke on a shotgun, your shot spreads horizontally.
If you use the Canted Ironsights, you tilt your gun at a 45-degree angle to aim.
If you use both at the same time, your shot spreads diagonally.
Im actually quite impressed that the game actually tilts the gun, and it isn't completely cosmetic.
In Battlefield 4, if you use the Duckbill choke on a shotgun, your shot spreads horizontally.
If you use the Canted Ironsights, you tilt your gun at a 45-degree angle to aim.
If you use both at the same time, your shot spreads diagonally.
Im actually quite impressed that the game actually tilts the gun, and it isn't completely cosmetic.