No sn data in the public domain.
Depends on what the rifle is, and whether or not you can trace it to the actual manufacturer. Interarms was an importer and distributor - not a manufacturer.
No published sn data.
To find the caliber of an Interarms Mark X rifle with the serial number A304938, you can check the markings on the barrel or receiver, as the caliber is often stamped there. Additionally, you can refer to the owner's manual or any documentation that came with the rifle. If you don't have access to these, consider contacting Interarms directly or consulting a firearms expert or gunsmith for assistance.
No published SN data I know of.
Sorry- no published SN data that I know of.
No published sn data I know of.
No known sn data published.
Interarms did not make it. Probably chinese
No published sn data I have seen.
Check old gun catalogs
Old gun catalogs
The Interarms Mark X rifle was manufactured starting in the late 1960s and continued through the 1990s. The specific production dates can vary based on the particular model and configuration. If you have a serial number, it can help narrow down the manufacturing year.