Which rear sight for No5 clone?

[TCS-5]

The Parker Hale De Lux No4 sporter has now been converted to a No5 clone. Barrel is now 18.7" from breech to crown before the No5 flash hider and blade sight were installed

What it was...




What it is...




I was looking for a No5 rear micrometer sight but it was suggested on another board that I need a Mk1 micrometer sight because it really was a No4 rifle...

Hmm, as far as I can see, the mount for the rear sight on a No4 and No5 are the same. And the same distance from center of bore. So, if the No4 had a No5 length barrel, wouldn't the Mk1 sight graduations be totally off?... I figure a No5 graduated rear sight would be what's needed. Hmm, Make sense to me, but I ain't no armorer or gunsmith.

Please confirm or deny my assertions... With reasonable explanation.

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