Not sure that getting a firearms business license for gunsmithing is quite that easy...
I think it is a grey area yet they have not addressed, this is from the RCMP site: any business simply needs to do this, my guess is there are lots of loop holes they will be looking at soon to stop transfers between business, as it stands the current ban is only for sale and transfer between individuals. We will have to wait for next election to see where we will stand in the future. It will either remain as is like with the prohibs in the 90's or slide into full bans (unlikely)
" Licence requirements
A business, museum or organization needs a firearms business licence to possess, manufacture, or sell
ammunition
firearms
restricted weapons
prohibited weapons
prohibited devices
The licence is only valid for the activities specified on it. Each location where the business operates needs a separate business licence.
A business may have prohibited items only for one of the specified purposes in Section 22 of the Firearms Licences Regulations.
Please contact the Chief Firearms Officer (CFO) of the business jurisdiction to receive an application form. The CFO may add conditions at his or her discretion.
To be eligible for a firearms business licence, a business must meet the following requirements:
All employees who handle firearms must have a valid Possession and Acquisition Licence (PAL).
If the business has only non-restricted firearms, employees must have a licence to acquire non-restricted firearms;
If the business has restricted or prohibited firearms, employees must be licensed to acquire restricted firearms.
If the business has restricted or prohibited weapons, prohibited devices, or prohibited ammunition but does not have any firearms, employees do not need a firearms licence. However, employees need to be eligible for a firearms licence. This means they do not have to submit a licence application, but they must be able to pass a background check and there can be no court orders prohibiting them from possessing firearms or other regulated items.
Certain people connected to the business will also need to be eligible for a licence.
owners and partners
directors and officers of the corporation, if the business is a corporation
anyone in a relationship to any of the above with a direct influence on the business or who could have access to firearms held by the business
The Canadian Firearms Program (CFP) service standard to process a properly completed business licence application is 55 days."