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  #1  
Old 11-18-2013, 03:14 PM
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M1 Carbine operates as a single bolt action.


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My Iver Jonhson M1 Carbine does not semi-auto cycle but operates like a single bolt action? Is it possible the gas piston has been rotated 180 degrees for single bolt action mode? Little history; this carbine was manufactured in 1978. FYI this gun was my father's, he passed away many years ago and now it is my gun. I have had the gun for approximately 20 years and last weekend was the first time I fired the gun. At the range my carbine would not semi-auto load but function just fine as a bolt action. Also I have the Universal M1 Manual which instructs you in the steps to change over semi-auto cycle to a single bolt action. The Universal M1 30 cal. carbine semi-auto manual states the M1 can be change to a single shot bolt action by turning the gas piston plug 180 degrees. Also one of buddies at the range suggested it might be a weak recoil spring or magazine spring issue.

Hope I made sense above.

Shepp

Last edited by Shepp Horn; 11-19-2013 at 02:17 PM.
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  #2  
Old 11-18-2013, 04:14 PM
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Many people change them to operate that way. I've converted a few.

It is simple to do and many states do not allow hunting with semi rifles, so people convert them. In the 1960-70s when the carbines were selling for $17, lots of people converted. There was even a "kit" to do it. The convertion is to remove the gas piston (steel) and replace it with a small cylinder usually aluminum.

Check that first, especially if you are in a state that doesn't allow semi auto to hunt with. You need a special wrench to get that piston nut off (usually about $10).

Edit: i should have mentioned they operate perfectly as a straight pull rifle if converted.
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Last edited by HarryS; 11-18-2013 at 04:17 PM.
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  #3  
Old 11-19-2013, 05:23 AM
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Location: Northcentral Pennsylvania
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Shepp,

Why not ROTATE the Gas Plug and see what happens? I never saw Carbines going for "17 dollars." In 1965, I did get a DCM M1 Carbine for $17.50 plus $2.50 shipping. At the same time (circa 1965) my old "American Rifleman" Ye Olde Hunter ads show them for $69.95.

Webley
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  #4  
Old 11-19-2013, 07:04 AM
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I stand corrected..they were 17 and some pennies. My old mid is going.

Let us know it you can flip it (it isn't symmetrical)
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  #5  
Old 11-19-2013, 08:14 AM
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HarryS,

The only M1 Carbines for $17.50 in the 1960s were from DCM as coordinated through the NRA. There was a year-long waiting list. For those who chose not to qualify and wait, the price was $69.95 from commercial vendors like Ye Olde Hunter.

Webley
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  #6  
Old 11-19-2013, 09:39 AM
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Yep, me and about 15 of my relatives and buds got them for the $17. It was a year wait, but you didn't have to send any money until you got the word that your gun was ready to ship...then a postal money order and BANG it came in the mail.

I see them now for $500 and up at gun shows.

I see you are in Pennsylvani, that is one of the states I referred to that doesn't allow hunting with semi autos. Lots of conversion in PA back then to 'straight pull'. Grice's in clearfiled also had the kits. I converted my bro' gun in Florida, years later his house was burgularized.. lost a lot including that converted M1 carbine.

I always think some dude is going to use it in a crime and fire one shot then not know what is happening!!!! the initial post had me wondering.

PS like most crimes, the burglar was later determined to be an in-law. They got 4 truckloads of stuff...nothing recovered.
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  #7  
Old 11-19-2013, 09:49 AM
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The M1 carbine uses a short stroke piston that moves freely in the cylinder and is retained a collar. There is simply nothing to rotate to shut off the gas.

I have seen the gas ports in M1 Carbines get clogged from shooting cast bullet loads, so you'll want to ensure that the piston moves freely (tip the barrel up and down and it should move under the force of gravity) and you want to remove the collar and piston to ensure the gas port is still clear. Just be sure to not cross thread the collar when you replace it.
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  #8  
Old 11-19-2013, 10:20 AM
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HarryS,

I am glad we are on the same page. I went into my library an hour ago and read the August 1, 1966 "Shotgun News" and the Hunter's Lodge ad had Very Good M1 Carbines for $60. The August 1966 "American Rifleman" had the Ye Olde Hunter ad for M1 Carbines at $69.95. I never saw M1 Carbines in gun shops for $17. If I had, I would have bought all they had. I got many 98 Mausers in the $15-25 range and British .303s for $15-25 as well. The 1960s were the Glory Days of gun collecting. I got a mint 03-A3 for $25 and still have it as well as all the other gems from half a century ago.

Yes, PA does not allow semi-auto rifles or handguns for hunting, BUT semi-auto shotguns are legal. Go Figure? I never saw a deer hunter with an M1 Carbine afield even if it was a "straight-pull." I lived in other states and we used semi-autos for deer hunting with no problems. Here on the farm, if I shoot a coyote or groundhog with the Garand, I tell them it was a bolt gun, eh, wot?

Be well.

Webley
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Last edited by Webley; 11-19-2013 at 10:28 AM.
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  #9  
Old 11-19-2013, 10:50 AM
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I do hunt with my carbine. It is effective with proper shotplacement on deer and smaller. But what I call proper shot placement most hunter would never understand. NY state outlawed semi rifles for years (eccept for th adirondacks). in the last 10 years they made it a county option. Slowly they changed, and the western most county where I hunt often just changed 2 years ago, so rilfes semi are legal for deer. IN Ny I was accustomed to hearing 5 shotgun shots on even deer someone saw. an most hit nothing or blew a leg off, terrible waste of deer.

Now that rifles are allowed the AK style seems to rule and the 5 shot blasts are now 8 shots. go figure. 'spray n pray' is alive and well. Often, I hunt northern Clearfield county (Medix Run)...I'm glad PA is no semi-auto and hope they stay that way; but legislature is being presured by the AR community!!!

I have killed literally hundreds of whitetails, so 'getting a deer' is not a big thing. I usually pass 20 deer before taking a perfect short range shot. So taking a deer or two is usually under 15 yards for me.



yes, M52. the gas piston is like a top hat, and it can't be reversed or the retaining bolt (segemented head) can not be threaded. I replace the piston completely with a straight piece of aluminum rod turned to fit and provide no movement.

Good advise to check the gas port for Shepp Horn. He will still need the special wrench. Once the bolt is threaded free, the actual tophat shaped piston will fall free. If he looks closely yoou will see that the gas port is drilled on assembly right thru the boss on the lower end of the barrel at the gas-piston -bolt. A small thin wire can be used to see it it is plugged. most people fire jacketed bullets and I've never found a carbine with lead plugging, but it could happen. I'd bet it is converted to straight pull...hope Shepp get back to this thread.
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  #10  
Old 11-19-2013, 12:03 PM
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Iver Johnson, Universal, AMAC, and Plainfield are related, but I don't believe the guns are clones of each other or that parts interchange 100%.

I would pay attention to small details and check for incorrect or missing parts.
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  #11  
Old 11-19-2013, 02:12 PM
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Thank you All!

FYI I am waiting to receive a gas nut piston tool for my Carbine and then I can move ahead with my project. Also I would put my money on a obstructed gas port at this point but that will determine when I am able to remove gas-piston, inspect, clean the gas piston/gas port and gas port barrel hole. Worse scenario replacement parts are available such as gas piston and gas nut tool. Will update you all when my carbines semi-auto functions properly and fully is operational. Bang, bang, bang<<<<<<<<
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  #12  
Old 11-19-2013, 04:20 PM
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Quote:
Originally Posted by Mainspring View Post
Iver Johnson, Universal, AMAC, and Plainfield are related, but I don't believe the guns are clones of each other or that parts interchange 100%.

I would pay attention to small details and check for incorrect or missing parts.
It's incredibly complicated.

Go here and start reading. It's got some really interesting stuff.

Commercial carbine history

The Iver Johnson carbines started with Millville Ordinance, which went out of business due to the owner being convicted of smuggling arms to Batista. H&S then started selling them along with Plainfield ordinance that had done most of the barrel and receiver work for Millville Ordinance. Iver Johnson eventually acquired Plainfield.

So for the Iver johnson carbine history start reading at Millville Ordinance and follow the time line.
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Last edited by Model 52; 11-19-2013 at 04:24 PM.
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  #13  
Old 11-20-2013, 03:43 PM
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Model 52,
Right on, been there and lots of good information.
Thank you
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