What recoil spring and mainspring for 1911 Cmdr 45? - 1911Forum
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Old 02-10-2020, 01:43 PM
Shutterbug Shutterbug is offline
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What recoil spring and mainspring for 1911 Cmdr 45?

I know I have seen this before, but search engine can't find it. I need to know what recoil spring and mainspring weights are standard in the Ruger 45 Cmdr. Thanks in advance.
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Old 02-10-2020, 02:28 PM
jjfitch jjfitch is offline
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Google is your friend"

"What recoil spring and mainspring for 1911 Cmdr 45"?

1911 Forum:

"Wolff standard is 18 lb.
Get a COMMANDER spring. It is fewer turns of stiffer wire.
A GM spring will go "solid" and can blow the bushing out."

Smiles,
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Old 02-16-2020, 12:44 PM
dakota1911 dakota1911 is offline
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I would start here if you go to the Wolff site.

https://www.gunsprings.com/COLT/1911...cID1/mID1/dID1

Then click on Commander for the diffs in the recoil spring. Mainspring is the same I think.
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  #4  
Old 02-27-2020, 09:20 PM
LensWork LensWork is offline
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According to the email response that I received from Ruger, their .45ACP Commander models come stock with a 16# recoil spring. Also from Ruger, their .45ACP Commanders use a 29# mainspring. The “standard” recoil spring in a Colt .45ACP Commander is 18#; and all Colt Government/Commander 1911s use a 23# mainspring as standard.

Last edited by LensWork; 02-27-2020 at 09:31 PM.
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Old 02-28-2020, 08:32 AM
SOL-INVICTUS SOL-INVICTUS is offline
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I prefer the wolf 18 lb in my commander, but I fitted an ed brown barrel with proper lockup. I wonder if the main spring is heavier due to the ruger titanium firing pin as a drop safety requiring more power to over come the lighter mass for consistent primer ignition.

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Old 02-28-2020, 12:38 PM
LensWork LensWork is offline
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Quote:
Originally Posted by SOL-INVICTUS View Post
I prefer the wolf 18 lb in my commander, but I fitted an ed brown barrel with proper lockup. I wonder if the main spring is heavier due to the ruger titanium firing pin as a drop safety requiring more power to over come the lighter mass for consistent primer ignition.

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That is a very good point that I had not considered. If that is the case then I suppose if you change to a lighter mainspring, would you need to replace the Ruger factory ti firing pin with an aftermarket stainless one to insure reliable ignition? I took my 6720 to a gunsmith to have a short trigger installed and he suggested that I replace the factory MIM ignition components with quality hardware such as Cylinder & Slide. The C&S kit I purchased (but have not installed yet) came with an 18# Wolff mainspring.
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