This is the only list I've been able to find:

Boston Police Department

Issued the .36-caliber Colt Model 1851 revolver in 1854-1884?

Issued the 9×20mmR (.38 S&W) S&W .38 Double-Action revolver in 1884-19??.

Issued the 9×29mmR (.38 Special) ??? revolver in 19??-1992.

Issued the 9×19mm Glock 19 pistol in 1992-1999.

Issued the 11.43×23mm (.45 ACP) Auto-Ordnance Model 1921A Thompson submachine gun in 1921-19??.

Issued the 18.5×70mmR (12-gauge) Ithaca Model 37 pump-action shotgun in ????-19??.

Issued the ??? Colt Model 1895 machine gun in 191?-19??.

Issues the 10×21mm (.40 S&W) Glock 23 pistol and 10×21mm (.40 S&W) Glock 27 backup pistol from 1999.

Issues the 5.56×45mm Colt AR-15A1 R603 (M16A1) semiautomatic rifle from 2009.

I found this at:
pw_massachusetts - worldinventory

Post if you find anything more complete.