Airsoft replicas with blowback and added digital effects do have a place even in shows that otherwise use blank firing. For example I noticed some instances in
Banshee where blowback airsoft pistols are used where people are shot at close range (a time I remember this was in the final episode Siobhan uses a blank fire Glock apart from at one point where she shoots someone at close range who is in the same shot where it switches to an airsoft Beretta 92FS).