Springfield 1911 firing pin spring weight ?????

[tercel89]

I just removed the ILS (the stupid new key lock safety) and the mainspring housing on my Springfield Mil-Spec 1911 and put in a regular mainspring housing and regular weight 23lb spring. 
I once read that Springfield uses an extra heavy firing pin spring and this it is really too strong and could cause light primer strikes. 
Is this true and if it is stronger than the "normal" 1911 specs , what weight of spring would I need to bring it up to "normal" standards ?

[Jct1911]

The heavy firing pin spring is due to the lightweight titanium firing pin they use as a modified drop safety(reduced weight/lower inertia). If you replace the spring, I'd replace the pin also. They also use 9mm/38super firing pins.


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[stumpy]

Before you begin searching for parts and replacing your current fire pin and spring, wouldn't it be prudent to test fire several rounds of various brands of ammo to determine whether you actually need to do this? Does your 23 pound mainspring and current fire pin and spring combination give you consistent ignition, are fire pin marks in the primers deep and uniform, etc. etc. If a need exists, respond to it as required. If the need is not there you would be swapping parts more on a "want" basis than a "need". A simple test fire session could save you time and coins.

Stumpy

[tercel89]

Everything works fine right now. It pierces the primers at a pretty good depth and reliably. I just now found out about the titanium firing pin. WOW . Didn't know that. I can see now why they need a spring to push it that hard since it's so light. 

[teecro]

Everything works fine right now. It pierces the primers at a pretty good depth and reliably. I just now found out about the titanium firing pin. WOW . Didn't know that. I can see now why they need a spring to push it that hard since it's so light. 

 

Actually to the best of my understanding is the two work together to all but prevent an accidental discharge in the event of dropping the gun "just right" The titanium pin being so light is not able to build much weight based inertia if dropped and the heavy spring all but captures the pin in its resting place.....  

[Dolomite_supafly]

I run a 20 pound spring for my main, hammer, spring and have never had issues with light strikes. I also run a steel firing pin which is harder to get moving compared to a Ti one. The firing pin will not protrude when the hammer is resting against it. The hammer strikes the firing pin and the firing pin goes pretty deep into its hole before hitting the primer. I run a 20 pound spring to reduce the trigger pull and compensate for it by running a heavier, usually 18 pound, recoil spring. I cannot recall which firing pin spring I am running, I know it is a Wolff but I cannot remember whether it is a standard or heavy. I want to say standard but I am not 100% sure.

 

If you really want to test it go grab a box of steel cased ammunition and shoot it. If it sets those off you will not have a problem with anything else.

 

And just to make you aware NEVER drop the slide on an empty chamber of a 1911. It WILL ruin the sear and will make the gun unsafe. The higher end the gun the more susceptible to this. I have seen a lot of guns damaged by dropping the slide on an empty chamber. What happens is the nose of the sear gets broken or rounded and then the hammer follows the slide. If you are lucky the hammer will stop at half cock. If you are unlucky the hammer will follow the slide all the way down and the gun will go off. If you are extremely unlucky the gun will not stop with one, will go full auto and empty the magazine.