I believe all the early/military issue TL29 were made with 1095 or 440A, depending on the specifications in effect at the time of manufacture.
I know all the "Demo Knives" regardless of who made them, were all 440A. That is what the Mil Spec called for, from day one.
If made by Camillus or one of the other government contractors post 1989, then it will still have good steel, be it carbon steel or stainless steel.