A bit of a obligatory detour into jig making and experimentations with pressing/forming of that T1 trademark receiver stiffener rib/bead.
These suckers right here.
The story all of it's own that took more than a few weekends, but suffice to say, some jigs and mistakes were made.... Eventually. With help from a friend who patiently kept fulfilling my requests for pics and measurements of his demilled T1.