Quote:
Originally Posted by cbr6864
The SD does not cock the striker like Glock or XD with the SD the striker is only reset. Try this rack the slide back a fraction of an inch you will hear the striker reset. The SD has a heavy trigger compared to Glock and XD because you must fully pull back the striker with the trigger pull. The SD is very safe as the striker is not cocked back like other striker fired guns and on top of that there is the firing pin block. The only way to get an SD to fire without pulling the trigger is to have the firing pin block fail and drop the gun from an extreme height muzzle down and somehow create enough force to cause the striker to drive forward with enough force to set off the primer.
If your trigger/sear springs break all that will happen is a failure to reset.
Now the chances of that actually happening are about the same as finding an honest politician
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I agree. One of the reasons the SIGMA and the SD trigger pulls are longer and heavier than the M&P and Glock is that the striker is basically NOT pre-cocked by the running of the slide. The Glock is partially pre-cocked (which is why it was originally classified as a DAO by the ATF), while the Springfield XD and the M&P are either at or nearly at full cock, as I understand it.
The firing pin safety prevents inertial discharge from a drop or jarring of the pistol to its front and the articulating trigger prevents inertial firing if the pistol is dropped on its rear (necessary because it is a striker fired action rather than hammer fired).
The SIGMA and SD Series pistols are every bit as safe as an S&W revolver, provided they have not been modified and are operating within spec.