[citation needed] The anatomical, adjustable walnut grips were also available, on order from Walther, for left-handed shooters.

In 1988, Walther introduced a fully adjustable (for pull, stop, and angle) two-stage trigger that athletes could retrofit their pistols with.

The GSP chambered for .32 S&W Long WC, sometime referred to as the GSP-C, was intended for use in competitions that only allowed centerfire cartridges.

Today, there is also a more accurate version available known as the GSP Expert which has a vibration-absorbing Aluminum sleeve, containing inertial dampers, around the barrel.

The Walther GSP is a popular choice for the various 25 m pistol shooting events governed by the ISSF (some contested at the Olympic games).

It is also classified as an assault weapon under Chicago and Cook County laws due to the magazine being outside of the pistol grip.