Parker Hale M85

[Lee Enfield]

Even a picture through the mag well and ejection port would be helpful.

An M87, not quite what you asked for, but you can see some major differences between the M87 and M85:
Attachment 63454

I'm sure you've seen this:

Parker-Hale M85 sniper rifle receiver casting : Small Rifle Parts at GunBroker.com


Viewpoint - British Army Contract for L96A1 Sniper Rifle (by Gil Boyd B.E.M)
Parker Hale M85 Serial Number Checks Provenance on Manufacture (Records)