SUSAT design dimensions

[ArtioZen]

I scored a couple of surplus SUSAT sights in excellent condition in the US - Does anyone have the vee rail dimensions? I have a couple of rifles and carbines convert / fit these to. One of them will be a FAL / L1A1 - it has a Stanag top cover which provides a nice alumnium block - I want to look into flattening this in a mill to an appropriate height over the barrel and adding the vee grooves and bore to accept the SUSAT. any dimensions, drawings and other info much appreciated!
Lets see where this post gets bumped around to!

Information

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[Scout Sniper]

As far as i was aware, the L85 had a 19mm dovetail rail...