Is it just as simple as replacing the 9mm barrel and or bushing to a 45?
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CONVERTING 9MM COLT COMMANDER TO 45
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If I remember correctly, the mag wells are somewhat different dimensionally. There might be differences in the barrel to slide measurements as well. I have a .45 Combat Commander and at one time had a 9mm Commander and I never thought of trying to swap parts. They were always two wholly different guns to me.
-- Rifle, Pistol, Shotgun
Not a lawyer, just a former LEO proud to have served.
Americans have the right and advantage of being armed - unlike the citizens of other countries whose governments are afraid to trust the people with arms. -- James Madison -
I think you need to swap slides tooWTS all BNIB: Colt S70 Repro, HK45c, Gen4 G19Comment
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Not that simple to go from 9 to .45 - If you have a 9 in commander size - It's quite desireable - Sell it and you'll have plenty leftover to get your .45 -
Here's a thread over @ 1911 forum discussing the very same -
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I had an older Series 80 Colt Combat Govt. Not a Special Combat Govt. This model well predated the specials. It came with a factory 9mm conversion unit.
To do the conversion, you need a complete upper end, (slide and all internals including barrel, etc.) slide stop, ejector, and magazines. Slide may or may not need to be fitted. Colt's are pretty loose fitting. With this, you should be good to go.
RyanThe following statement is true.
The preceding statement was false.Comment
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I think you have it right.As someone else pointed out you need to change out the ejector in the frame.
Although it seems relatively simple it can be a PITA to do this. When you change
everything over you end up with a whole bag of loose parts for one
caliber or the other. Be a lot better to have 2 seperate pistols. PeteComment
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