Older shotgun repair help

[Bob A]

A year ago I got an old Winchester M12 trap gun for my grandson. He hasn't shot it much, and recently he and hos dad went to the range, and the trigger mechanism failed. Trigger now doesn't move forward and reset. I told him I'd get it fixed, but I wonder if y'all could direct me to someone knowledgeable about these older guns?

(It's one of the facy ones, with pretty wood, vent rib etc. I suspect most of the younger set may not have ever seen a shotgun older than themselves, and it deserves to be done right.)

 

[Sgt. Psycho]

Scotts Gunsmithing.

Dealer Information - Scott's Gunsmithing Service

Dealer Name: Scott's Gunsmithing 231 Thelma Avenue Glen Burnie, MD 21061 Phone Number: 410-761-9815 Fax Number: 410-761-7221 Website: www.scotts-gunsmithing.com Store Email: Sales@scotts-gunsmithing.com and Gunsmith@scotts-gunsmithing.com Facebook Forum Username: Scott's Gunsmithing...

www.mdshooters.com

 

[wilcam47]

Have to take it apart but maybe a trigger spring?

Winchester Model 12 Parts | Numrich Gun Parts

Find Winchester Model 12 parts and schematics today with Numrich Gun Parts. Providing parts since 1950.

www.gunpartscorp.com

 

[Neutron]

The model 12 will slam fire so be careful that you don't work the action with the trigger stuck back and ammo in the tube.

 

[The Saint]

I have a local guy who wa a machinist for 20 years, now a biomedical engineer, that works on a lot of my older shotguns. If you're interested, drop me a PM. He is NOT a gunsmith and I of course can not guarantee he can fix it, but he has put SxS's back on face, rebuilt parts, etc for me. Break-open and especially SxS shotguns is his specialty. He doesn't have a months long backlog, but also only takes on the ones he wants to, which is basically antiques and old shotguns. Let me know.

 

[Doco Overboard]

Nu-Line Guns is who you should get to fix it if you want the best with reasonable cost and by having a workman who is not learning as they go. Its not that others are incompetent its just what the mechanism is and who its intended to be used by.
Other wise It could be anything from a broken firing pin, hammer/ sear trouble etc.
The model 12 trigger will drop right out of the reciever by removing that small screw just behind the trigger bow.
Once its out of the gun you can work the trigger pack if that what it should be called to determine if there are any other problems such as the slide release or another culprit hampering operation.
The M12 has a trigger mechanism like a rifle with all the parts easily replaceable. The trigger pack -mechanism is also designed with a firing pin block system. A look at the hammer sear engagement without doing anything other than removing the trigger group will give you an idea becuase you can clearly see the operation. By removing the trigger group, it will also separate the main groups from others which will only help to distinguish ancillary and primary causes of the trouble.