Help with id on 2 Springfield 1911s?

[becket]

thx for the I’d help on my beretta Model 70.
Need help with types of Springfield 1911s
these are I may buy, one or both, in pics below please. Disregard shadow in middle of that one gun please.
Both are stainless model A1 I guess; but which stainless A1s? A few kinds are made by Springfield.
Pics below; one has laser grips, may have been added on after purchase, just dunno.
Serial numbers are also in pics, thanks!

 

[Jammersix]

Loaded model.

 

[ApacheCoTodd]

Looks like generational differences of the same loaded model.

Conventional wisdom tells me that the one without the safety-lock is either older or has been modified.

Todd.

 

[unclenunzie]

My loaded model purchased new in 2009 has the mainspring housing of the pistol on the right. I forgot about the lock, I think I tested it once when I got it. Serial starts with N54 if that helps.

 

[becket]

That works thanks all