Here's some info that I posted on another forum back in 2008- it is still valid
The very first Charter Arms Corporation production began in 1964 in BRIDGEPORT CONN - earliest pieces - mostly Undercover model will have either NO address on the right side of the barrel or will have BRIDGEPORT.
Around 1970, address was changed to STRATFORD CONN - all pieces made after mid 1970 will be marked with that address on the right side of the barrel and all will have CHARTER ARMS CORP. as the first line. Around 1991, Charter Arms Corp. ceased operations. This was the end of the FIRST GENERATION.
Around early 1992, the company was re-organized under new leadership and became known as Charter Arms Company - CHARCO, and was located in ANSONIA CONN. All second generation pieces will be marked on the right side of the barrel with that name and address in two lines. This is the SECOND generation and apparently the period which caused the most damage to the Charter name and reputation.
In 2000, the company was again reorganized as CHARTER 2000 and relocated to SHELTON CONN. All pieces made during this THIRD generation will be marked with the SHELTON address. Early production of this generation seems to have been spotty and reputation still lagged. About a year and a half ago, the company re-reorganized under the direction of MKS Marketing and seems now to be if not flourishing at least it is progressing in quality and market share.
From the limited data set that I have been able to assemble so far the following serialization seems to be valid: (NOTE: model name and caliber will be stamped on left side of barrel on all pieces)
FIRST GENERATION
0001 - <4000 Bridgeport 1964 - ? CHARTER ARMS CORP. right side of barrel marking only
~4000 - <300,000 ? - ~1970 CHARTER ARMS CORP. over BRIDGEPORT CONN .marking
~300,000 - <1,080,000 - ~1970 to 1991 - CHARTER ARMS CORP. over STRATFORD CONN. marking
SECOND GENERATION
>1,100,000 - ??? 1992 - 2000? CHARCO over ANSONIA CONN- marking
THIRD GENERATION
000001 - to date 2000 - 2008 CHARTER ARMS 2000 over SHELTON CONN marking.
I would appreciate any data that owners of CA Corp. or CHARCO or Charter 2000 can supply to flesh out the data base. Serial numbers and barrel addresses are welcome as is any data detailing firm production dates associated with serial numbers. Thanks.
Jim Hauff
Contributing Editor to "The Blue Book of Gun Values" by S. Fjestad