M1903 / A1 Sniper Rifle Scope Mounts

[cplstevennorton]

What dimensions are you trying to figure out? Like the dimenstions of the blocks or how they were installed on the rifle?

The handguards are all identical on real USMC 1903A1 Snipers. I took my real one over to the retired Professor of the Machine shop at Purdue University, and he is quite certain that the handguards were made on a horizontal Mill with a 3'' cutter.

He actually tried to make a few duplicates to see if he could duplicate the cut and they were identical in everyway.