Hi
Got to stick my pennies worth in here
There are a huge amount of modelguns used in films, yes less now, but still very common.
The Japanese film industry is not small, and they managed for years! ( I am going to start another thread were we can share over time for fun any films using / that have used modelguns )
The Key with modelguns is to understand that they are NOT guns, they, just like real firearms, require the users to understand the finer points of their operation. I have a number of customers in other countries with even tighter laws than ours who swear by them.
One of the best quotes from a film maker to myself was:
"I dont expect to be able to use the more complex models without training anymore than I expect you to direct a movie or use the camaras without training".
Blank firers are great (if visual realism is not required), great big bang, easy (ish) to use!
For non firing close ups (where you dont want to pay the huge price for an armourer) I think its hard to beat modelguns!
Sold one where the requirement was for a guy to sit under a lamp and field strip a gun put it together then shoot himself in one take, perfect modelgun work !!
Its horses for courses as we say in the UK, but they can work well