Kam-Act from Martin Archery catalog
(1974)
The Kam-Act could be adjusted to any draw weight from 20 to 80 pounds by
changing the cable
between the limb and cam, had a positive adjustable draw stop, internal
tiller cables and full draw length
adjustment.
Kam-Act patent
Roy Hoff
at the Safari Shoot in Fresno, California
Prototype Kam-Act
1972-73
Ryan Martin holding a custom painted Kam-Act
Custom painted
Kam-Act bows
Terry shooting the original prototype Kam-Act. He has a
28" draw and the prototype was set at 32". The fun challenges of
R & D. (1973)