Tactical Hand Gun Holster IMI Defense IMI-Z1425 Polymer Retention Roto Holster for Walther PPX. Tactical Light Hand Gun Holster IMI Defense IMI-Z1425 Polymer Retention Roto Holster for Walther PPX IMI-Z1425 - Polymer Retention Roto Holster for Walther PPX. Polymer Retention Roto Holster for Walther PPX. Comfortable contoured fit, Retention with zero time to disengage Fully adjustable for cant Rotates 360 degrees for every application (small of back, cross draw)