[Coogan]

The following is a breakdown of Glock models by the lowest reported serial number prefix and date. I have gathered this info from the Serial Number Survey and present it here as a reference.

Currently this is a work in progress and the data presented here is NOT 100% accurate.

Model - Date - Prefix - Misc. Notes

G17 - 10/86 - AA
G17C - 1996 - CBT
G17L - 4/88 - DA - First G17L, BTT date code
G17Gen4 - 1/10 - PFB

G18 - 12/88 - DU
G18C - 12/88 - DU

G19 - 5/88 - AN - 1st Gen Frame
G19C - 1996 - CBS

G20 - 7/90 - MC
G20C - UNK - CDA

G21 - 12/90 - UB
G21C - 5/97 - CGD
G21SF - 2/07 - KVS

G22 - 1990 - NC
G22C - 2/97 - CFF
G22Gen4 - 12/09 - PCG

G23 - 5/90 - ND
G23C - 12/96 - CBV

G24 - 12/93 - ATA
G24C - 3/94 - ATU

G25

G26 - 7/95 - BMX

G27 - 7/95 - BMY

G28 -

G29 - 12/96 - CDH
G29 w/rail - ??? - ???
G29SF - 1/09 - MKL

G30 - 10/96 - CDA
G30 w/rail - ??? - ???
G30SF - 2/08 - LWT

G31 - 2/97 - CDZ
G31C - UNK - CVU

G32 - 1997 - CEA
G32C - 1997? - ??? (there are currently only 2 G32Cs reported, the first being in the Exx range)

G33 - 2/97 - CEB

G34 - 4/98 - CPY

G35 - 9/98 - CWS

G36 - 7/99 - DBE

G37 - 9/03 - FUB
G37 Gen4 - 5/10 - ??? Florida State Police were the first recipients
G38 - 3/05 - HCD

G39 - 5/05 - HCH