The L1A1 (popularly known as the SLR) was a British gas operated semi-automaticrifle based upon a modification of the Belgian FN FALrifle. The L1A1 was chambered for the 7.62 mm cartridge which it took from a 20-round box magazine and fired at a muzzle velocity of 838 metres per second to an effective range of 600 metres. The L1A1 had a 554 mm long barrel and was fitted with a trilux foresight and an aperture rearsight. Research L1A1
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