There is a major functional difference in that the 1991 version has a firing pin block safety the standard 1911 does not.
Firing pin block 1911s the triggers arent as crisp as the older style as the have to also push the block up and out of the way. Its only noticible if you have a long history of shooting 1911s without.
Its an unneeded set of parts in a properly functioning 1911. A properly maintaned and correctly carried 1911, round in the chamber hammer cocked with safety on, has a halfway stop to prevent hammer strikes if the gun is dropped. A firing pin safety is only required if the gun is being carried incorrectly withthe hammer down on a loaded chamber
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...
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