Title v 15.4 - 3 / 5 / 2008
Parts
Serial #s and Other Markings

Note: Glocks with commemorative markings have their own section here

My Glock has serial number xxxyyy, when was it made?
First, check this thread over at GlockTalk.com to see if it is listed there. If it's not in that list try this tool at TopGlock.com. If that fails call Glock with your serial number and they will tell you the date of your gun.
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What do Glock serial numbers mean?
Glock started with serial number "AA000". The serial numbers went up to "AA999" and then rolled over to "AB000", etc. Once they reached "ZZ999", it rolled over to "AAA000", and so on. Pistols imported into the United States have a "US" on the end of the serial number on the frame.

There are some Glock pistols with custom serial numbers.When asked to make custom serial numbers for Police Agencies making large orders, Glock uses the initials of the department, a four digit number and the "US" designation. For example, the Detroit Police Department had this done. Their pistols have a serial number like "DPD0001US". [John Hollister]
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Why does my frame/slide/barrel have a G#### / S#### / L#### serial number?
Replacement frames slides and barrels have special serial numbers. The serial number consists of a single letter followed by 4 digits:
G#### for replacement frames
S#### for replacement slides
L#### for replacement barrels

The prefixes seem to fit with the German translation of the part they represent:
G = Griffstück (frame)
S = Schlitten (slide)
L = Lauf (barrel)
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What is a J#### serial number?
Glock prototypes and other parts for internal use only are given a special serial number. The number is a J followed by four numbers (J####), J1234 for example. This number is used because the letter J is not included in any other Glock gun codes.
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LE Marked Glocks
Law enforcement agencies often order Glocks with special serial numbers, usually using the initials of their department. Some of the LE marked Glocks are:

Department Name Date Number Models Serial #s Marking
Boston Police Department 1992 ? G19 PN###US BOSTON P.D.
Bexar County Sheriffs Office ? ? G22 BCT####US ?
Cedar Rapids Police Department 1992 ? G22 CRPO*** ?
Colorado Division of Gaming ? ? G27 ? Badge
Detroit Police Department ? ? ? DPD#### ?
Georgia Department of Transportation ? ? ? GADOT#### ?
Georgia State Patrol ? ? G22 ? ?
Georgia State Patrol ? ? G27 ? ?
Henrico Sheriff's Office ? ? G17 ? Henrico Sheriff's Office
Idaho Dept of Fish and Game ? ? G23 ? IDAHO DEPT OF FISH AND GAME
Jefferson County Police Department ? ? ? JCSD#### ?
Kansas Highway Patrol ? ? ? KHP#### ?
Louisville Police Department ? ? G22 ? Dept badge
Metro Police, District of Columbia 1/1989 4000 G17 ? MPDC
Metro Police, District of Columbia ? ? G19 ? MPDC
Milwaukee Police Department ? ? G22 ? Milwaukee Police Department Badge
Missouri Dept. of Natural Resources ? ? ? ? ?
Missouri State Highway Patrol ? ? G22 MOHP#### MSHP + Badge
Montgomery County, ID ? ? G22 ? MNTRY CO SHERIFF
Nebraska State Patrol*1 1997 78 G30 ? 1937-1997 Nebraska State Patrol (+logo)
New Orleans Police Department ? ~2000 G22 NOPD#### NEW ORLEANS POLICE DEPARTMENT + Badge/Star
Orange County Sherriff's Office ? ? G19 ? ?
Rochester, Minnesota police ? ? G23 ? Dept badge
Rock County Sherriff's Department ? ? G22 ? ROCK COUNTY SHERRIFS DEPT
San Antonio Police Department ? ? G22 SA####TX
SATX####
?
San Diego Sherrifs Dept. ? ? G17 SDSD#### ?
Santa Clara County Sherrifs Dept. 9/1992 ? G22 ADN900US SCSSO
Shreveport Louisiana Police Dept. ? ? G17 ? S-PORT POLICE DEPT
South Carolina Highway Patrol ? ? G22 ? SOUTH CAROLINA HIGHWAY PATROL
Tennessee Division of Forest Resources ? ? G22 ? Tenn.D.F.R
Texarkana Arkansas Police ? ? ? ? TAPD & PD Badge
Texas Game Warden*2 ? ? G22 ? ?
Virginia Beach Sheriff Dept ? ? G19 ? Badge/Star
Warner Robbins Police Dept ? ? G19 ? Warner Robbins Police Dept + Badge

*1 Thirty of the Nebraska State Patrol commemoratives also included a walnut display case.
*2 The Texas Game Warden Glocks are the only Glocks that do not have any letters in the serial number. The number is in the format xxx-xxx and has no letters.

DC Police G17 Rock County SD G22 South Carolina HP G22
MPDC G17 Rock County SD G22 SC HP G22
[Andy] [Steve Kelley] [Steve Kelley]


Nebraska State Patrol San Antonio Police Department
Nebraska State Patrol Glock Nebraska State Patrol Glock
[AndyG35] [Nathan]


Milwaukee Police Dept Virginia Beach Sheriff Dept Warner Robbins Police Dept Missouri State Highway Patrol
[Steve Kelley]
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Why does my Glock have NPv and eagle on it?
From 1982 to 1991 G17s were assembled & test fired in Austria. (Later pistols were assembled and test fired at Glock Inc. in Smyrna, GA.) These early production pistols are marked with an eagle and "NPv". The markings are proof marks and inspectors marks as required on Austrian pistols.

The NPv mark means "Nitro Powder proofed". To get this proofmark, a Gun in Austria has to be proofed with 130% loads.
Proof Marks
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What's the number molded into the trigger guard?
On the earliest Glock 17s and Glock 19s, the model number was molded into the frame on the side of the trigger guard. The practice was stopped when Glock decided to re-use the same frame for additional models.

G19 On Frame
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Where can I get my Glock slide engraved?
Zipgraver http://www.zipgraver.com/ does some excellent work engraving Glock and other pistol slides. Here's a few pictures of their work:
Engraved Glock Engraved Glock Engraved Glock
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