Model 37 marking|Winchester Shotguns|Forum|Winchester Collector

Avatar
sp_LogInOut Log In
sp_Search Search
Advanced Search
Search
Forum Scope



Match



Forum Options



Minimum search word length is 3 characters - maximum search word length is 84 characters
sp_Search Search
Lost password?
sp_Feed sp_PrintTopic sp_TopicIcon
Model 37 marking
Avatar
usmc1978
New Member
WACA Guest
Forum Posts: 2
Member Since:
August 1, 2025
sp_UserOfflineSmall Offline
1
August 8, 2025 - 11:59 am
sp_Permalink sp_Print

I recently bought a Model 37, 20 ga. Behind the trigger guard, on the extension of the receiver, it is marked “GM.” Can anyone tell me what this means?

Avatar
Bert H.
Kingston, WA
Admin
Forum Posts: 14228
Member Since:
April 15, 2005
sp_UserOnlineSmall Online
2
August 8, 2025 - 3:31 pm
sp_Permalink sp_Print

It is an inspector’s stamp (after final assembly).

Bert

WACA Historian & Board of Director Member #6571L
High-walls-1-002-C-reduced2.jpg

Avatar
usmc1978
New Member
WACA Guest
Forum Posts: 2
Member Since:
August 1, 2025
sp_UserOfflineSmall Offline
3
August 8, 2025 - 3:57 pm
sp_Permalink sp_Print

Thanks!

sp_Feed
Go to top
Forum Timezone: UTC 0
Most Users Ever Online: 21294
Currently Online: Bert H., wally, Chuck, antler1, tim tomlinson, TXGunNut, Zebulon
Guest(s) 89
Currently Browsing this Page:
1 Guest(s)
Top Posters:
TXGunNut: 7291
clarence: 7119
Chuck: 6647
steve004: 5633
1873man: 4894
deerhunter: 2971
twobit: 2677
Big Larry: 2578
mrcvs: 2430
Maverick: 2180
Newest Members:
Tomtwogloves
APEXSHOT
Dcbace
Mrgold
GKADLEC194
Ted Parkins
Kiole307
haggie
JSchluter
shbonney
Forum Stats:
Groups: 1
Forums: 18
Topics: 15805
Posts: 143937

 

Member Stats:
Guest Posters: 2057
Members: 10639
Moderators: 3
Admins: 4
Administrators: Mike Hager, Bert H., JWA, SethJ
Moderators: Rob Kassab, Brad Dunbar, Heather

© Copyright 2026 Winchester Collector

Navigation