PKT, feed tray cover, with rail

This was a project I did some 20 years back, before B&T came out with their PKM rail.
It’s a Young manufacturing picatinny rail riser I machined to match the contour of a PKT (solenoid-fired tank version, no rear sight) receiver cover. It is affixed to a shorter rail section affixed to the flat portion of the cover.
It has the advantage of being much longer than the B&T version.