RFI

Rifle Factory Ishapore, post independence marking Ishapore arsenal, India
INSAS

INSAS

INSAS or Indian Small Arms System is a family of Indian designed and manufactured infantry arms consisting of an assault rifle and a light machine gun (LMG). 
GRI

GRI

George Rex, Imperator (i.e. King George VI, last Emperor of India)

Ishapore

Arsenal, founded 1903 in Ichapur, India. Post independende marking became RFI, for “Rifle Factory Ishapore”
LSA

LSA

The London Small Arms Company Ltd (LSA Co) was a British Arms Manufacturer from 1866 to 1935. LSA Co was initially formed to compete against the Royal Small Arms Factory (RSAF), Enfield by the participants in the London Armoury Company, which had gone out of business...