To add to the above, from the evidence on the receiver, this started life as an Enfield manufactured MH MK I, was converted to MH MK II, escaped conversion to MM or ME configuration (.303 conversion), and was finally converted by Greener for the Brit's NRA use, which in this case appears to have involved a new .22 barrel in ME contours and fitted with ME wood. In its original form it would have only had military sights, however it is rare to see one that remains that way today, with most of those encountered wearing period rear sights mounted like that shown....or at least having the inletting for such a sight that has since been removed.

The military trainer of the MH era involved the use of a Morris tube fitted to the standard issue rifle, shooting the 297/230 Morris round.