AMT Automag III (30 Carbine)

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Rod4277

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First thanks to all of you that posted threads on the Automag. It prompted me to make this acquisition of an AMT Automag III in 30 Carbine.

I just completed the transfer yesterday at my local gun shop. The shop owner and his gunsmith both commented on the gun condition, original box and paperwork. See the attached pictures.

Next we gave the Automag and inspection and broke it down for a good cleaning and lube. It was obvious the gun had little use and needed a little lubrication. It was dry and may have never been lubed.

While disassembled for TLC I noticed there’re departures from the standard 1911 with some innovations in the design. I also noticed that the frame was fairly light as compared to the heavy barrel and slide assembly. The surprise is the balance of the fully assembled weapon. The long sight radius should make it easy to hit the target.

We like to use a little Mil Comm TW25B for the heavy metal-metal contact areas and CLP, where light oil is appropriate. I like to use a very light coating of TW25B for the slide-frame interface on all my slide guns.

I found disassembly to be simple, but a little difficult the first time. I gave the barrel bushing extra lubrication to make it easier to dissemble the next time. The barrel bushing is hard to rotate into the dissemble position and you can’t use a 1911 barrel busing tool because of the design of the guide rod and guide rod bushing. I used a small brass punch to depress the guide rod bushing while rotating the barrel bushing for disassembly and reassembly. I found this quite awkward but managed accomplish this without launching the guide rod bushing and spring. Consider this a little warning if you have never disassembled an Automag before. I’m attaching an exploded assembly diagram that may help you understand what I’m attempting to describe.

If it doesn’t rain here today I’m ready for the range and some that “fun” the Automag fans here are talking about.

The attached link gives a little history of the AMT Automag
http://en.wikipedia.org/wiki/AMT_AutoMag_III

Have a great day!
 

Attachments

  • AMT Automag III.pdf
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Certaindeaf: I tried Federal 110 gr SPRN yesteday and we experienced "short cycling". See my other post on the cycling issue. I guess I'm goine to have to experiment. We do plan to reload but I need to make sure there isn't a mechanical issue first.

Do you have any experience with the Automag III?
 
Rod4277,
No I don't.. had a .44 Automag a long time ago. I gather they are way different.
That's too bad about the 110 RNSP, that's a good default whapper. Maybe the soft lead is digging in enough to tie it up on feeding.
I hate to say it but try some FMJ just so you can see if it'll tick along. Good luck and happy blasting.
 
I owned an AMT Government Model .45 once, and the slide/slide rails had the same bead blasted finish as the outside of the gun. I had to stone them before it would cycle reliably.
 
Jaymo: Thanks for the info. If AMMO don't solve the issue I will look into polishing the slide rails. I may a gunsmith I know here look at it first. I'm planning to have him look at it anyway.

I'm planning to have the front sight modified. It groups real nice about 6 inches above the point of aim at 25 yards (900"). The rear adjustable site is adjusted all the way down. So according to my calculations the front sight needs to be about 0.060" higher. The existing front sight is 0.200" high and the sight radius is 9"

X = 9/900*6 = 0.060"

thanks again!
 
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