The Walther LG400 Blacktec match air rifle features a 300/200 bar compressed air system, Equalizer magnetic absorber system, and pressure reducer with Quickclean air filter. The .177 single shot also has an aluminium stock with wide range of settings and T-slot rail. Vario trigger for extremely fine settings, which includes dry-firing mode. Basic match diopter and Walther Basic fore sight holder.

The Walther LG400 Blacktec comes with a right/left ambidextrous grip and cheek piece. It has an ergonomically shaped loading lever, which can be placed on the left-hand or right-hand side. Other features include steel cylinder, without absorber, quick-action stock length and cheek piece setting, adjustable fore-end, and Walther light metal butt plate Sinus.

Eco valve technology allows for minimal opening pulse and reduced shot development time. The wide breech has a loading status indicator. Made in Germany.