In Pakistan, the number of arms allowed on one license varies depending on the type of license and province. Here’s a general overview:

Non-Prohibited Bore (NPB) License

1. Maximum number of firearms: 2-3 (depending on the province)
2. Types of firearms: Semi-automatic rifles, shotguns, and pistols
3. Caliber restrictions: Up to .45 caliber for pistols and revolvers, up to .308 caliber for rifles

Prohibited Bore (PB) License

1. Maximum number of firearms: 1 (fully automatic weapon)
2. Types of firearms: Fully automatic rifles, submachine guns, and machine guns
3. Caliber restrictions: Prohibited bore caliber (e.g., .50 caliber or higher)

Provincial Variations

1. Punjab: 2-3 firearms on NPB license
2. Sindh: 2 firearms on NPB license
3. Khyber Pakhtunkhwa: 2-3 firearms on NPB license
4. Balochistan: 1-2 firearms on NPB license

Additional Requirements

1. Justification: Applicants must provide justification for needing multiple firearms.
2. Background check: Thorough background checks are conducted before issuing licenses.
3. Renewal: Licenses must be renewed periodically.

Important Notes

1. Laws and regulations may change.
2. Provincial authorities have discretion to issue or deny licenses.
3. Compliance with all regulations and laws is mandatory.

For the most up-to-date information, consult the following sources:

1. National Database and Registration Authority (NADRA)
2. Provincial Home Departments
3. Pakistan Arms Ordinance of 1965
4. Ministry of Interior

Please consult with relevant authorities or a legal expert for personalized guidance.