S&W has a lifetime service policy, but as you state they do indicate to the original purchaser. Although most manufacturers, including S&W often don't ask if you are the original purchaser or not. I'd call them back and see if you can't get a different customer service rep.
Service Info - Smith & Wesson
The Smith & Wesson Advantage™
In addition to providing some of the highest quality products available today, Smith & Wesson is committed to providing our customers with support and services second to none. When you purchase a Smith & Wesson handgun, you receive the Smith & Wesson Advantage™, comprised of four service features:
1. Lifetime Service Policy
We will repair any defect in material or workmanship without charge to the original purchaser for as long as you own the handgun.
Service Info - Smith & Wesson
The Smith & Wesson Advantage™
In addition to providing some of the highest quality products available today, Smith & Wesson is committed to providing our customers with support and services second to none. When you purchase a Smith & Wesson handgun, you receive the Smith & Wesson Advantage™, comprised of four service features:
1. Lifetime Service Policy
We will repair any defect in material or workmanship without charge to the original purchaser for as long as you own the handgun.