M1 Carbine Part 2: Group Disassembly

In M1 Carbine Part 1, we took a look at the external condition of the new old CMP M1 Carbine.

In this edition, we’re going to disassemble the Carbine into its major groups.

The first step of any firearm task is (of course) make sure the firearm is unloaded…verify a clear chamber and safety on.

After safing the firearm, the next step is to remove the action from the furniture.

This is pretty easy with the M1 Carbine.

First, loosen the screw holding the front band. The screw is designed so that the rim of a shell can be used to loosen it in an emergency.

The screw does not need to be completely removed, just loosened enough so that the band can move around. On my rifle, the screw was staked so that it would not come all the way out without excessive force.

There is a spring clip with a tang that hooks into the front band.

After the front band screw is loose, Press in on the shaft of the spring clip to release the front band and slide the band assembly forward.

You may need to use a punch or screwdriver to press the spring clip in far enough to release the band.

Slide the band all the way up the barrel to get it out of the way.

Then lift the front of the upper hand guard away from the barrel and slid it forward. There is a metal liner on the rear of the upper hand guard that hooks into the receiver to secure it. Lifting the front of the hand guard and pulling forward will pull the rear liner free of the receiver and release it.

The next step is to remove the receiver and barrel from the stock. Simply lift the front of the barreled receiver which releases the rear from the recoil plate which stays in the stock. After the lug at the rear of the receiver is clear of the recoil plate, the receiver and barrel can be lifted free.

Set the stock aside.

Next, the trigger housing group is removed.

Remove the pin at the forward end of the trigger housing. On mine the pin was pretty loosely fitted and didn’t require a punch. It simply pulled out with my fingers.

Then slide the entire housing forward until the rear lug clears the grooves in the receiver.

The trigger housing group is now freed from the receiver and can be lifted clear and set aside.

Next is the Operating Slide group.

The first step in this is to remove the Operating slide spring.

The spring is clearly visible on the lower left of the receiver/operating slide.

At the forward end, the spring guide is held in place by a detent in the rear of the operating slide. The rear of the spring is inserted into a deep hole in the front face of the receiver.

To remove, grasp the spring and spring guide just behind the operating slide. Pull the spring and guide back until the tab on the end of the spring guide is clear of the detent in the operating slide.

Pull the spring and guide to the right until clear of the operating slide and pull forward until the rear of the spring is clear of the hole in the receiver.

To remove the operating slide itself.

With the operating slide fully forward and the bolt closed, grasp the charging handle.

While putting a slight pressure up and to the right, slowly pull the charging handle to the rear.

At about the point where the forward face of the stop is aligned with the forward face of the receiver, the operating slide handle will reach a detent in the guide track in the receiver and will pull free up and to the right.

Once the operating slide handle is free from the receiver and bolt, slide it back forward again while gently rocking it from side to side.

When it reaches a point about where the rear face of the stop is aligned with the front face of the receiver, it will be released from the guide rails on the receiver and will drop free.

The final step is to remove the bolt. This is a fairly straightforward procedure, but there are two protrusions that have to be aligned correctly one by one in order for the bolt to come out. One is a rail on the opposite side from the camming lug. The other is a protrusion on the rear of the firing pin.

Grasp the camming lug on the bolt and rotate the bolt so that the lug is pointed up.

Pull the bolt slightly to the rear and lift until the front rails are clear of the receiver.

Then rotate the camming lug back to the right until it is horizontal. This will clear the firing pin tab from the receiver.

Then pull the bolt forward and up to free it from the receiver.

There you have it. That wasn’t painful at all now was it?

Coming up next: Disassembly and inspection of the trigger housing group.

I keep forgetting to ask…what’s everyone think of my homemade maintenance/cleaning stand and box?

I had been thinking about buying one but I had some scrap wood laying around so I figured I’d just make one for temporary use until I had the money/motivation to go buy one. My homemade one worked out so well I just decided I really didn’t need to spend the money on a commercial one. That’s $30 or $40 I can spend on ammo instead.

5 thoughts on “M1 Carbine Part 2: Group Disassembly

  1. Your directions are quite good, but I wish they would go a bit further. I can't read the serial number and manufacturer's name on the rear of my carbine's receiver because they are covered by the adjustable sight. The top of the barrel just behind the front sight says "Rockola" but I don't think this is enough. Any suggestions on how to get the information? Thanks.

  2. I could see mine underneath the sight.

    You could remove the rear sight but they are staked pretty heavily so I wouldn't recommend it unless you really need to do it.

    I'd be afraid of damaging the sight or receiver trying to get it off.

    I once saw a clamping jig that a guy had specially made for holding the receiver while pressing out the rear sight, but it was very expensive. It would only be worth it if you were going to be working on a bunch of them.

    Short of removing the rear sight, it's just a matter of peering under there with a bright light and a magnifying glass to see if you can make out the markings.

  3. Pingback: M1 Carbine Part 12: The infamous sling and sling oiler | Captain of a Crew of One

  4. Pingback: M1 Carbine Part 8: Bolt reassembly (ugh!) | Captain of a Crew of One

  5. I found your site while surfing the net for parts. I had a Win.Carbine years ago and needed a refresher.I liked Part2 so much I am bookmarking your site for future reference. Great instructions and pictures. I’m looking forward to going over your entire site. Thanks for taking the time to post all of this information, Gary.

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