Ishapore Rifle Factory

Ishapore Rifle Factory
Industry Defence
Headquarters Ishapore, India
Parent Ordnance Factories Board
Website Official Website

The Ishapore Rifle Factory (also known as Ishapore Arsenal) is an Arms manufacturing plant located at Ishapore, in the Indian sub-division of Barrackpore, outside Calcutta in West Bengal.


The first Arms Manufacturing facility on the site was a gunpowder factory, which was started in 1787 and began production in 1791, whilst a Gun & Carriage manufacturing facility was set up nearby in 1801.

In 1904, a Rifle Factory was established at Ishapore, and began production of the Lee–Enfield rifle, which has continued- more or less- until the mid-1980s, and possibly the present. The factory also manufactured the Vickers-Berthier (VB) light machine gun, which was adopted in 1932 by the Indian Army and still remains in reserve use.[1]

Military rifles manufactured at Ishapore 1949 and pre-1949 are stamped "GRI" on the buttsocket, referring to George Rex, Imperator (i.e. King George VI, last Emperor of India), whilst military rifles manufactured 1949 and post-1948 are stamped "RFI", which stands for Rifle Factory, Ishapore.

The .303 British calibre Short Magazine Lee–Enfield Mk III, the 7.62×51mm NATO calibre Ishapore 2A1 rifle, and the 7.62mm NATO L1A1 Self-Loading Rifle were manufactured at the Ishapore Rifle Factory, and the factory now manufactures the 5.56mm INSAS rifle assault rifle for the Indian Army, as well as numerous other weapons like Pistol Auto 9mm 1A and Ghatak 7.62×39mm assault rifle (an AKM-style rifle) for both the military and civilian markets.

The Ishapore Rifle Factory is controlled by the Ordnance Factories Organisation of India. The organisation and the Ordnance Factory Board are notoriously secretive regarding production figures for military rifles, making the exact number of rifles produced at the arsenal almost impossible to determine.


  1. Bishop, Chris The Encyclopaedia of Weapons of World War II page 245 (Amber Books, London, 1998) ISBN 978-1-905704-46-0

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