Mike, the pistols themselves are the same. The 798681434053is just a "Manufacturer" designated package to be sold to QP/LE only. So it will come with the LE Discount and an extra magazine over the standard pistol package.

in this case you would be better to buy the no QP gun and more than 1 extra mag this is a case where the QP discount is not any savings but a higher price

same gun the 798681434053 is a Qualified Professionals Only package the price difference is because they have less of the 798681434053 in stock