จริงครับ
http://www.amasci.com/~rayburn/woodsman/1955-77: Third Series: Colt Huntsman and Targetsman Models
Model..... HUNTSMAN (1955-77).............TARGETSMAN (1959-77)
Barrel.... 4-1/2 or 6 inch, non-tapered.... 6 inch, non-tapered
Grips....(Huntsman) Injection molded black plastic to 1960 (approximate serial number 141094-C), walnut thereafter. No thumbrest.
............(Targetsman) Injection molded black plastic to 1960 (approximate serial number 141094-C), walnut thereafter. With thumbrest.
Other Features... Butt clip release, larger trigger guard than second series, smooth trigger.
No automatic slide stop, no lanyard ring, no grip adapters, and no magazine safety.