While the armeria won't tell you and the clerk who accepts your application robotically says 15 workings days, the reality is that the process of issuing licenses has been slowed way down. Probably several reasons for this, but one of the big ones that I keep hearing from those in the business is that the Minister has decided to apply the breaks.
Foreigner applications for a new firearm (new to the owner not the country) may take almost a year. For Dominicans six months or more. I know a Dominican who has been waiting for a renewal since the end of May. VIP processing is a fallacy, out and out bribes still work, but are more difficult to initiate.
Having a contact is helpful.
If the sellers had to wait until the license is issued before getting your money, things would change. But alas here in the DR everyone gets their money first and you end up in limbo praying it doesn't take more than a year or you'll have to start the process again.
As mentioned, no rifles. Since the populous starting popping off at the Politicos, they have fallen out of vogue.