Photos & Information | Disassembly Instructions | Parts Identification | Production Dates |
| Colt Detective Special Production Information in same serial number range as Police Positive Special | Year | Serial Number Range | Year | Serial Number Range | 1927 | 331000-333000 | 1953 | 624851-648900 | 1928 | 333001-373000 | 1954 | 648901-662650 | 1929 | 373001-383000 | 1955 | 662651-672050 | 1930 | 383001-400000 | 1956 | 672051-695400 | 1931 | 400001-405000 | 1957 | 695401-710600 | 1932 | 405001-412000 | 1958 | 710601-725600 | 1933 | 412001-423000 | 1959 | 725601-750000 | 1934 | 423001-435000 | 1960 | 750001-776400 | 1935 | 435001-444000 | 1961 | 776401-797500 | 1936 | 444001-452000 | 1962 | 797501-819500 | 1937 | 452001-457000 | 1963 | 819501-839500 | 1938 | 457001-467000 | 1964 | 839501-861500 | 1939 | 467001-471000 | 1965 | 861501-890800 | 1940 | 471001-474000 | 1966 | 890801 D900101-D926000 | 1941 | 474001-477000 | 1967 | D926001-D958500 | 1942 | 477001-479000 | 1968 | D958501-D995000 | 1943 | 479001-479500 | 1969 | D995001-D998715 A10000-A43500 | 1944 | 479501-480000 | 1970 | A43501-A59999 B01001-B23000 | 1945 | 480001-481000 | 1971 | B23001-B49000 | 1946 | 481001-490000 | 1972 | B49001-B59999 C01001-C26000 | 1947 | 490001-494000 | 1973 | C26001-C60000 F01001-F08800 | 1948 | 494001- 510001-501600 | 1974 | F08801-F60000 H01001-H18100 | 1949 | 501601-501817 515051-519410 525001-542400 | 1975 | H18101-H60000 M01001-M29600 | 1950 | 542401-571500 | 1976 | M29601-M51999 01001M-19200M | 1951 | 571501-607400 | 1977 | 19201M-59999M 01001R-11700R | 1952 | 607401-624850 | 1978 | 11701R-59999R S01001 |
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Colt Agent Serial Numbers Lookup
Colt Agent Serial Numbers Lookup
Colt Agent.38 Special. One revolver that I regularly put in the rotation of various pocket guns I carry around the house is a Parkerized post 1972 Colt Agent, which is a variant of the light, alloy frame Colt Cobra, which in turn is a variant of the carbon steel frame Colt Detective Special. The fit and finish of the later Agents often was not. The 'U' under the serial number is a factory inspectors stamp. In the mid-1960's, Federal law demanded that all firearms have a unique serial number. At that time Colt started using letters as a prefix or suffix in the serial number. In these guns, the letter is part of the numbers. Bootcamp drivers windows 10 64 bit download.
Photos & Information | Disassembly Instructions | Parts Identification | Production Dates |
| Colt Detective Special Production Information in same serial number range as Police Positive Special | Year | Serial Number Range | Year | Serial Number Range | 1927 | 331000-333000 | 1953 | 624851-648900 | 1928 | 333001-373000 | 1954 | 648901-662650 | 1929 | 373001-383000 | 1955 | 662651-672050 | 1930 | 383001-400000 | 1956 | 672051-695400 | 1931 | 400001-405000 | 1957 | 695401-710600 | 1932 | 405001-412000 | 1958 | 710601-725600 | 1933 | 412001-423000 | 1959 | 725601-750000 | 1934 | 423001-435000 | 1960 | 750001-776400 | 1935 | 435001-444000 | 1961 | 776401-797500 | 1936 | 444001-452000 | 1962 | 797501-819500 | 1937 | 452001-457000 | 1963 | 819501-839500 | 1938 | 457001-467000 | 1964 | 839501-861500 | 1939 | 467001-471000 | 1965 | 861501-890800 | 1940 | 471001-474000 | 1966 | 890801 D900101-D926000 | 1941 | 474001-477000 | 1967 | D926001-D958500 | 1942 | 477001-479000 | 1968 | D958501-D995000 | 1943 | 479001-479500 | 1969 | D995001-D998715 A10000-A43500 | 1944 | 479501-480000 | 1970 | A43501-A59999 B01001-B23000 | 1945 | 480001-481000 | 1971 | B23001-B49000 | 1946 | 481001-490000 | 1972 | B49001-B59999 C01001-C26000 | 1947 | 490001-494000 | 1973 | C26001-C60000 F01001-F08800 | 1948 | 494001- 510001-501600 | 1974 | F08801-F60000 H01001-H18100 | 1949 | 501601-501817 515051-519410 525001-542400 | 1975 | H18101-H60000 M01001-M29600 | 1950 | 542401-571500 | 1976 | M29601-M51999 01001M-19200M | 1951 | 571501-607400 | 1977 | 19201M-59999M 01001R-11700R | 1952 | 607401-624850 | 1978 | 11701R-59999R S01001 |
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