Increase sales significantly

i really think Glock would instantly increase sales by 30-50 percent were they to offer a manual safety as does many of their top shelf competition.
There are numerous people who will not carry a firearm without a manual safety.
It is pure stubbornness to listen by Glock n fan boys of striker fired handguns that amazes me.
Sig, Smith, Beretta , Ruger etc.... all understand that manual safeties are legit preference of thousands upon thousands of gun owners.... Glock really needs to unplug...

Increase sales significantly