IIRC, the British produced rifles post WWII went to a milled sight again, but not the Canadian examples. The Canadian guns have a pressed steel adjustable aperture sight. My Pakistani No.4 Mk2 has a milled sight, which makes sense because they were given the entire Fazakerley factory plant. The post-war British rifles all had 5-groove barrels and all the refurbs of that period I have seen are also so equipped.

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