Peculiar Parker Hale sight

[RJW NZ]

I've picked up a PH5c with a couple of odd features and wonder if it was designed for a particular rifle or model of enfield I don't normally know.

It has an extra bracket attached to the hole that would normally attach at the rear sight position. The bracket reaches forward to attach at the top of the charger bridge. I can't for the life of me think of a no4 enfield that would normally be missing its rear sight pivot holes. The bracket seems professionally made, not homemade.
And on the top horizontal arm; normally this arm has square sides, this sight has both the sides at a 45 degree angle, like TZ's like to do, but there's for sure no TZ marks on this.

Is this for some rare and weird rifle?

[Mk VII]

I'd say it's probably for a Mauser '98 action, and is a consequence of when the rules were opened up to other action types in the 1970s. I've got one of these brackets round here 'somewhere'.

[whiterider]

is that the mount is for an M44 Omark target rifle...I have one of those brackets lying around somewhere and it came with an Omark but not the sight itself.

I'd sooner have a good Central than the PH so I put one of those on.

[No4Mk1(T)]

is that the mount is for an M44 Omark target rifle...I have one of those brackets lying around somewhere and it came with an Omark but not the sight itself.

That’s what I was thinking as well. Is the adapter removable by the back screw? I wonder how stable this arrangement would be with just that single screw holding it on if that’s how it is done?
As a side note both of my PH5C sights have the beveled arm.

[jona]

It is for the Omark 44. It is exactly like the one on mine.

[Mk VII]

We sometimes see those Omarks here but not often.

[bearhunter]

Are the Omark M44 rifles the same as Sportco M44 rifles?

[RJW NZ]

I pulled a rifle and took a look, you were all correct, the charger bridge on the enfield is quite a bit forward of that bracket, so I'm going with Omark 44 too. cheers

[Mk VII]

There was a discussion about the Sportco/Omark 44 at Sportco/Omark - Gunboard's Forums

[Enfield trader]

One like this is up on Ebay now but no pics.