Sirin, model number 2842475LECOLE is optics ready. Model number 2842475LE is the exact same pistol as 2842475 it is just the law enforcement versions of it, so they're identical. The only one that's different of the 3 is model number 2842475LECOLE Wich again is the same Pistol as the other two but it's optics ready. Hopefully explained this well enough and hope it helps.

Sirin, the 2842475LECOLE is the Optics Ready Model. The latter two are the same pistols with the LE version being a LE/First Responder package sold at a discount to First Responders. Cheers and stay safe!