So i just bought my first enfield no4 mk1 but its different then others.

[Surpmil]

Can't say anything more about the foresight protector as far as RSAF Enfield is concerned; there does appear to be a crown mark under the paint on the left side, but no sign of the characteristic "D/E" Enfield monogram. You could safely bend the ears back out if you're careful, they've been pushed in towards each other over the years. Have a look at the photos of trials No.4s posted on this site for guidance.