Firing pin block

Dan-O-Mite

Dan-O-Mite

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Hey guys, looking for a little education. I have been hearing about guys removing a firing pin block from their firearms.

What does the firing pin block do, and why would you remove it?

I have read that removing it makes the trigger pull a little lighter, are there any other effects?
 
The series 70 colt had a firing pin block. Something along the lines that if the safeties were applied, a pin blocked blocked the motion of the firing pin. I think the idea was to prevent the firing pin from moving forward due to inertia if the gun was dropped.

I don't know of any current firearm produced for IPSC that has a firing pin block like the series 70 has, but I'm not all that up on the produciton guns.
 
Isn't it Series 80 that has FPB? Series 70 doesn't have one.
Lack of FPB attributes to crisper trigger not necessarily much lighter due to extra parts/surfaces and springs involved in engaging-disengaging FPB.
 
FYI if you intend to shoot IDPA matches removal of safeties is a no, no. I have shot pistols with both a FPB and no FPB and frankly culd see little difference in trigger pull on a well tuned 1911.

My SP-01 has a FPB and my Shadow doesn't and the difference in trigger pull is negligible. This is particularly true when shooting a match.

Take Care

Bob
 
Taking out the series 70 components alows you to use a series 80 extractor which doesn't have the big cut out for the firing pin safety plunger.
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Series70Extractor.jpg


to use the 80 extractor you just have to dump the plunger and spring, but if you remove the tansfer bar then you need to put a spacer plate to keep the FCG inline.
 
Firing Pin Block locks the firing pin if trigger is not pulled back.
Thus, if hammer somehow falls and strikes the firing pin, it will not hit the primer if you're not pulling the trigger at the moment. For example when gun falls on the floor, or you're manually cocking the hammer and your finger slips.
This feature does slightly increase the weight of trigger pull, as pulling the trigger also have to disengage the FPB, usually by squeezing a little spring.
As there are other safeties usually in place, like half-####, it is more or less safe to remove FPB. For IPSC it's only allowed in Standard division, in Production this would be illegal (of course they'd have to disassemble your gun to find out).
 
Madness said:
Taking out the series 70 components alows you to use a series 80 extractor which doesn't have the big cut out for the firing pin safety plunger.
to use the 80 extractor you just have to dump the plunger and spring, but if you remove the tansfer bar then you need to put a spacer plate to keep the FCG inline.
Click to expand...

That's correct accept it's the other way around. You dump the series 80 parts in favor of the series 70 parts. But I know you know that; it's a typo. I'm just being anal.
 
Thanks guys, great replies. I am in Standard in IPSC, and will be getting a new Tanfoglio next week, (I hope). I will probably leave the FPB in, just to be safe. I have seen a number of guns hit the floor/ground, I haven't seen one go off yet, maybe it was because they had the FPB installed.

Thanks again.
 
Dan there is nothing safe about leaving the FPB in unless you are planning on dropping your gun from a third storey window. it takes that much energy to creat enough inertia to move the firing pin enough for the gun to go bang. this is strictly an American lawyer safety device.
 
CeeZer said:
Isn't it Series 80 that has FPB? Series 70 doesn't have one.
Lack of FPB attributes to crisper trigger not necessarily much lighter due to extra parts/surfaces and springs involved in engaging-disengaging FPB.
Click to expand...

Ah, yes, you are correct. My typing fingers are working faster than my brain today.
 
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