There is no such thing as an "American Lab".  Many people decide to breed just to make a dog what they want it to be, for their purpose and their pleasure, and not for what the dog was originally meant to be according to its breed standard. You won't find a breed standard with this name "American Lab" as there is none. So please educate yourself when speaking about a Labrador. Review the breed standard as to what the correct build and design of the Labrador should be and its original purpose.  
                Labrador Standard      FCI Labrador Standard

There are many Labradors bred to compete in Field Trial Competition. These dogs are bred away from the Breed Standard. Many people now are referring to them an "American Lab" to describe what these dogs are like. These dogs are usually taller and/or longer legged lacking depth in chest and barrel, and lacking in the desired bone and substance required of the Lab Standard.  Many of these dogs have other desired breed features missing, including the heavy type of coat and very thick straight tail. This example of a dog has been bred and turned into a power-house of retrieving for hard competition in the field. They are fast, cover ground quickly and have the slighter build to make this possible. A totally different build and mental level is needed for this dog to compete in Field Trial Competitions today that require Quad marks (4) and blinds at distances of 350-375 yards on land, especially in summer heat, and similar in the water.  You need an "athlete". It would be very hard to do this with the dog that is a well bred Labrador Retriever as his build is totally different. The Lab was bred to be a companion and retriever when hunting at closer distances. People who want to compete in much of the field work are breeding the Labrador away from the standard for this reason.

All this being said, there is only the one Labrador Breed Standard. If you choose or have a need to have a different looking dog from what the Labrador should be, so be it. But please don't assume that your "Field Looking" dog is correct for the breed and that it is what the Labrador Standard should be.  It is not.

Regarding color:  Silver is not correct and it is not an acceptable color for a Labrador
 

FOR SALE:    Field Trained Black Lab Female, "Kelly"
about 2 yrs olld. Does double retrieves and whistle handing for blind retrieves. She has been through field basics with a Pro Trainer except for swim-bys.  Her sire is Barb Radtke's Field Champion "Ten".  Kelly is located in western Maryland. This is a very active girl, not just a quite family dog for small children.  Serious inquiries for hunting or performance activities. Thanks
      Price:  $3000       Email me for info:  nofleas24@gmail.com 
 

This litter will have both yellow and black Puppies

Sire:   

Steele's Good Ole Boy
OFA232315G, OFAEL82790, Cardiac Echo Normal, CNM clear, DM clear, EIC clear, HNPK clear, PRA carrier, Retinal/Oculoskeletal 1 clear, Skeletal dysplasia 2 clear, D/D non-dilute

Shalimar's The Animator
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Steele's Magnolia Black Island Lady

"Cletus"

Cletus has points towards his Show Championship.  He made the cut for winners dog at the Potomac Lab Specialty when he was 2 years old.  He has a great outgoing attitude. He has a wonderful outgoing personality and a big friend to everyone. He loves retrieving and is a great all-around boy.

                   Print Pedigree                    View Health info on the  OFA website,   
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Dam: 

Redlion's Lovin Lolli
OF252147Excellent, OFAEL100607, OFA EYE19998/2020-19, PRA-A, EIC Carrier,
 CNM clear, HNPK clear, DM clear, Long Coat clear

Lynneville and Storym C's Southern Hospitality
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Redlion's Jax


" Lolli"

Lolli lives on a horse farm so has lots of contact with the horse and other dogs. She's quiet and very sweet. I gave her as a surprise to my two grandsons for a Christmas present in 2018.  Cole and Noah love her and she is a constant companion and ball retriever for Noah!

 Print Pedigree                    View Health info on the  OFA website