It was marked MAG before being ground out and remarked L7A2. I have a post sample that was registered in the USAas an L7A2 but the original left hand side plate markings read MAG 2A which is an early FN mfg., Indian owned GPMG. The later ones are marked MAG 2A1. The LH side plate serial number of mine is A2336. It has also been rebuilt during it's service career and sports mostly EFD replacement parts so I'd say this is commonplace with Indian issue GPMG's.