The WZ305, or the PGZ80 as it would have been designated by the PLAGF, was an SPAAG that was based on the design of the ZSU-57-2 but mounted on a ZTZ79 chassis. In the late 1970s, the PLAGF recognized the need for a new SPAAG, as they had an abundance of towed anti-aircraft guns but lacked self-propelled systems. The plans included reverse-engineering ZSU-23-4s exchanged from Egypt and developing their own domestic systems. Additionally, they aimed to create a SPAAG with a relatively high-calibre weapon for field air-defense. Chinese engineers likely acquired the ZSU-57-2 from either Vietnam or Egypt, and the twin-barrelled turret was finalized by the mid-1980s. However, due to its inferior performance against third-generation jets and the development of new domestic SPAA systems, the WZ305 never entered service with the PLAGF. Instead, it was exported to Middle Eastern countries.

Introduced in Update 1.95 "Northern Wind", the WZ305 serves as the Chinese counterpart to the infamous ZSU-57-2. Veteran users of the "Sparka" will find the WZ305 very familiar. While it shares similarities in appearance, there are some differences. The hull of the WZ305 was developed from a later variant of the Type 69, unlike the ZSU, which used a chassis derived from the T-54. Cosmetic variations include headlights mounted on the fenders, side skirts, and the retention of all five road wheels. The WZ305's hull has improved armour, although this also adds approximately three tons to its weight, and it features a slightly more powerful engine. In terms of firepower, it benefits from a new DKY-1 airburst HE shell, making it much more effective against aircraft. The WZ305 can dispatch light targets, secure flanks, and clear the skies, making it a valuable asset in battle.