ORIGIN - USA
CALIBER - .22 LR
WEIGHT - 38 OZ.
OVERALL LENGTH - 8.5"
LENGTH OF MAGAZINE - 4.4"
First marketed in 1931 as the Ace, in 1937 as the Service Ace, and after World War II, called the Conversion Unit. The .22 unit was installed on a .45 frame using the floating chamber principle which allowed practice "at 1/7th the cost."
