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What do you need to convert a 1911 .45 to a 10mm?


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I saw similar on the internet a year or so ago, but have of course lost it.

 

Can anyone tell me the feasibility, difficulty and parts needed to convert a .45 1911 to a 10mm, and where they would look for the parts?

 

 

I woud be very gateful for the info and it would make a good sticky post in this topic forum!

 

Thanks!

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There is no easy conversion from .45 ACP to 10mm Auto. First, you will need a whole new top-end for the 1911, which isn't cheap! Add the barrel, bushing, and etc. The breach-face on a .45 ACP is larger than base of 10mm, which is in essence a .40 caliber. See the problem. It would be easier to covert to Johnny Rowland's .400 Corbon round, which is essentially a necked-down .45 ACP casing. In another scenario, the .45 Super is viable with a beefed-up recoil spring installed. If you must have a 10mm, have Fusion build one from scratch, or buy a Kimber. Hope this helps. :thumb:

Edited by Zephyr One/Zero
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There is no easy conversion from .45 ACP to 10mm Auto. First, you will need a whole new top-end for the 1911, which isn't cheap! Add the barrel, bushing, and etc. The breach-face on a .45 ACP is larger than base of 10mm, which is in essence a .40 caliber. See the problem. It would be easier to covert to Johnny Rowland's .400 Corbon round, which is essentially a necked-down .45 ACP casing. In another scenario, the .45 Super is viable with a beefed-up recoil spring installed. If you must have a 10mm, have Fusion build one from scratch, or buy a Kimber. Hope this helps. :thumb:

 

 

Or a better, simpler solution is to buy a .40 STI in any flavor you want and just ream the chamber to 10mm. Works like a charm.

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There is no easy conversion from .45 ACP to 10mm Auto. First, you will need a whole new top-end for the 1911, which isn't cheap! Add the barrel, bushing, and etc. The breach-face on a .45 ACP is larger than base of 10mm, which is in essence a .40 caliber. See the problem. It would be easier to covert to Johnny Rowland's .400 Corbon round, which is essentially a necked-down .45 ACP casing. In another scenario, the .45 Super is viable with a beefed-up recoil spring installed. If you must have a 10mm, have Fusion build one from scratch, or buy a Kimber. Hope this helps. :thumb:

 

Hit the nail on the head with that one! Thanks for the tech advice. I can leave that day dream alone and focus on many others!

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  • 1 month later...

Caspian Arms has a blued slide for 40/10mm for $211. If you want it in stainless, it's $238. Add cost of any options like sight cuts etc. and that's your total. Then you would need to purchase the sights, plunger, firing pin, firing pin retainer (I would suggest the EGW flat bottom), extractor, barrel, and bushing. The barrel can be pricey, $150-200ish. Put it all together and hope it runs, make any necessary adjustments, and if it still needs work, take it to a smith. If no gunsmith intervention is required, you would probably be into a project like this for $500-600.

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  • 3 months later...
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  • 5 months later...
I have a complete stainless Delta conversion top end with 3 colt mags I could be persuaded to part with. :thumb:

 

My question is why would one want to??? A 200 grn 10mm bullet coming out the barrel using Double Tap ammo is going over 1200fps. If you need more than that, try a revolver in a 44mag or locate a Desert Eagle etc. My lightweight Glock does all I need to have done on the street or off the street, as far as 2 legged perps go!

 

The 1911 model frame was not designed for such stress that the 10mm caliber dishes out over all. You could get yourself a Dan Wesson in 10mm or a Smith & Wesson etc.

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My question is why would one want to??? A 200 grn 10mm bullet coming out the barrel using Double Tap ammo is going over 1200fps. If you need more than that, try a revolver in a 44mag or locate a Desert Eagle etc. My lightweight Glock does all I need to have done on the street or off the street, as far as 2 legged perps go!

 

The 1911 model frame was not designed for such stress that the 10mm caliber dishes out over all. You could get yourself a Dan Wesson in 10mm or a Smith & Wesson etc.

 

Sure...that's why folks can run a 460 Rowland on it, because its so weak and sissy like. Got be one of the dumbest things I have heard yet.

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