Winchester Model 100 disassembly.

Pumpkinheaver · 10-21-2002, 09:21 PM

Anyone know how to disassemble a winchester model 100 for cleaning?

ScottD · 02-29-2004, 02:26 PM

Did you ever get it apart? I just took in a Win. 100 for blueing and refinishing, maybe I can help.

botcha-galoop · 04-26-2005, 03:42 PM

Did you ever dissasemble the winchester 100 ....if so any hints how to get the bolt out to change the firing pin...??

CountryGunsmith · 07-10-2005, 10:18 AM

Here you go.

Remove the magazine, clear the chamber. Remove the front swivel/forend screw.
Pull the bolt all the way to the rear and hold it there while you push the barrel upward out of the forend. This should seperate the stock from the barrelled action.

Look at the bars on the operating slide. See the small half-moon cutouts? Slowly pull the operating handle to the rear until you can see the pin lined up with the cutouts. Push that pin out. Be careful here, as this will release the trigger housing assembly which is under spring tension. This also will release both the inner and outer operating springs and their guide. BE VERY CAREFUL not to bend or spring out the bars on the trigger guard housing - if you do the mag will never seat right again. Set all this aside.

Back to the barrelled action. Remove the spring clip from the gas plug sleeve that keeps it attached to the gas block. Unscrew the gas plug which will release the gas cylinder. Slide the assembly back, and remove the gas cylinder to the front. The operating slide assembly and bolt will now remove upward and to the rear.

The bolt is held to the operating slide by a single pin near the rear of the bolt.

Look for the firing pin retaining pin toward the rear of the bolt. The firing pin and its spring removes toward the rear. There is a very small transverse pin toward the front of the bolt that seperates the bolt from its slide.

Hope this helps.

10-21-2002, 09:21 PM	#1
Pumpkinheaver Senior Member Join Date: Mar 2002 Location: Missouri Posts: 1,340	Winchester Model 100 disassembly. Anyone know how to disassemble a winchester model 100 for cleaning? __________________ Just because your paranoid doesn't mean they aren't out to get you!

02-29-2004, 02:26 PM	#2
ScottD Senior Member Join Date: Mar 2002 Location: Evanston, IL Posts: 1,020	Did you ever get it apart? I just took in a Win. 100 for blueing and refinishing, maybe I can help. __________________ "Some people can not live without wilderness"-Aldo Leopold

04-26-2005, 03:42 PM	#3
botcha-galoop Registered User Join Date: Apr 2005 Posts: 2	Did you ever dissasemble the winchester 100 ....if so any hints how to get the bolt out to change the firing pin...??

07-10-2005, 10:18 AM	#4
CountryGunsmith Registered User Join Date: Jul 2005 Posts: 1	Here you go. Remove the magazine, clear the chamber. Remove the front swivel/forend screw. Pull the bolt all the way to the rear and hold it there while you push the barrel upward out of the forend. This should seperate the stock from the barrelled action. Look at the bars on the operating slide. See the small half-moon cutouts? Slowly pull the operating handle to the rear until you can see the pin lined up with the cutouts. Push that pin out. Be careful here, as this will release the trigger housing assembly which is under spring tension. This also will release both the inner and outer operating springs and their guide. BE VERY CAREFUL not to bend or spring out the bars on the trigger guard housing - if you do the mag will never seat right again. Set all this aside. Back to the barrelled action. Remove the spring clip from the gas plug sleeve that keeps it attached to the gas block. Unscrew the gas plug which will release the gas cylinder. Slide the assembly back, and remove the gas cylinder to the front. The operating slide assembly and bolt will now remove upward and to the rear. The bolt is held to the operating slide by a single pin near the rear of the bolt. Look for the firing pin retaining pin toward the rear of the bolt. The firing pin and its spring removes toward the rear. There is a very small transverse pin toward the front of the bolt that seperates the bolt from its slide. Hope this helps.