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My name is ***** ***** I'll be glad to help you.
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Was the serial number prefix "nmc" or was the "nmc" marked elsewhere on the gun?
Can you attach some photos of the gun?
Ok - I've got step out for about 20 minutes or so. I'll pick this up when I get back.
Is that a two-tone finish? Or is the entire gun stainless? How long is the barrel?
The smallest 1911 from Springfield Armory has a 3-1/2 barrel. Are you sure it is 2-1/2? To measure, close the action and drop a rod down the barrel. Measure the length of the rod from the muzzle.
OK - let me check another source.
I'd love to see a photo. I'm not finding anything with a 2-1/2 inch barrel for a 1911. I'm going to opt out and let another expert try his hand at this. Someone should respond here shortly.
Does the slide on your 1911 have slots cut in the end for a ported barrel?
Just to be sure, when you are measuring the barrel you are including the chamber and the ported area?
It sounds like a 1911 Ultra Compact Stainless. It is similar to the following one on GunBroker. Grips will be different and this is a High Capacity. Yours should have a 6 round mag.
The above link in blue should be your gun, let me know.
Did you look at the second gun I sent, the Ultra Compact 1911A1 stainless custom? I really need a picture to determine which model you have.
If it is a stainless 1911 it should look like the ultra compact shown, all 1911's have the same shape, grips can be different and barrel lengths are usually 3", 4 1/4" and 5".
I am not at my computer all day, I am a gunsmith and have repair work too.
The blue link under my last reply is a picture of the gun, it is showing on my page, you should see it too.
I really need a picture of your gun to tell you what it is. It is easy to attach one, use the paper clip icon. You can also email it to JustAnswer.com and ask that it be forwarded to me