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Has anyone had any luck with the various .22lr conversion kits for the 1911/1991?

Colt, Ciener, Kimber, etc.?

What has been your experience with each/any?

Thanks!!
 

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Everyone I've talked to that has the Marvel conversion really likes it. I have the Colt with the floating chamber and it is the worst piece of junk I have ever bought.
 

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I also have an older (70 series) conversion unit that I use on a 70 frame. I keep the chamber clean as a bean (I actually clean it with Flitz after every range session) and have had no problems. This is the 3rd one I've owned and I've had good luck with each; they just require a little more care-and they are a Colt. -Asa
 

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I have two. One is a Colt Ace II conversion for series 80 guns. It took a lot of shooting to break in, and really needs high velocity rounds (Stingers) to work properly. Plus, it requires a special mainspring. However, it doesn't have the floating chamber.

My other is a Ciener Platinum Cup that I bought used from Ebay. It works well and I've shot over a thousand rounds at a time, using bulk Remington and Winchester ammo with very, very few problems. Usually, the problem can be traced back to the ammo. It may not be as accurate as some of the other conversions, but I'm satisfied with its performance. The Ciener does require special mags made by Ciener.
 

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I recently purchased a Advantage Arms .22 conversion and I am extremely impressed with it.Amazing accuracy with the Millett adjustble sights.Shoots well out to 100 yds.Must use high speed ammo though,but works flawlessly.
 

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[ QUOTE ]
My older Colt brand conversions work fine, but can't say for the newer Colt aluminum slide version, or the other brands.

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My Colt conversion kit is a series 70 purchased in 1976. It has the steel slide and has been back to Colt 3 times. The floating chamber fills up with lead within 10 rounds and then will no longer "float". When that happens it will no longer work. Then to get it apart it takes a vise and a pair of padded pliers to remove the chamber from the barrel. I sure wish it worked.
 

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m2hb-I have a series 70 conversion unit that I keep scrupulously clean. It'll shoot 50 hi-vel rounds(the most I do at one sitting) with no problems. I then clean the piston and chamber with Flitz polishing compound, wipe clean, and oil with FP-10. -Asa
 

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M2HB, try plated bullet ammunition. I find that "bare" lead bullet ammunition locks up the floating chamber more quickly than plated bullet ammunition. Then try different brands of plated bullet ammunition until you find one that does not lock up the chamber so quickly. I use Tetra Gun grease on the floating chamber in an early 1970s unit and can shoot 100-150 rounds without problems. The chamber remains free, and is easy to clean.
 

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It depends ion your personal preference. If you want the ultimate in accuracy and don’t mind the different heft that comes with an aluminum slide the Marvel is the most accurate and reliable from all I have read. If pinpoint accuracy is not that critical I have read good things of the Ceiner. Plus it is less expensive. Personally, I prefer the same or nearly the same heft as my .45 so I have a Colt conversion. It is steel and I believe it dates from the 1970’s. I bought it used and it feeds almost every type of .22 LR I have tried. It is usually good for 150 to 200 rounds before it requires cleaning. Beyond that point without cleaning you can expect malfunctions to start to occur. Even so I agree with the recommendation to use plated ammo. I am having a problem with ignition. The firing pin does not seem to be striking the rim squarely. This results in an occasional misfire. This is infrequent enough that I use it in club steel matches. It appears to be rather more accurate than I expected and it is a Colt and it is steel and I am pleased.

Bill
 

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I have had a Colt unit since the early 70's. While it is very enjoyable to shoot, reliability is not it's strong point. Condition of the magizine, type of ammo and how clean the thing is determine how often the jams occur, usually after twenty or thirty rounds. A shooter at our local club uses a similar Colt for 22 combat type matches and the gun never seems to malfunction. He attributes the reliability to an extremly loose slide to receiver fit. That may be, but sometimes you are lucky and gets something that works and sometimes you don't.
 

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I had the Colt ACE II kit . neither my gunsmith or I could get it to feed correctly. Aways jammed or stovepiped with all ammo tried. Stay away!
 
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