[citation needed] QBU-88 rifle is optimized for a special heavy loading of 5.8×42mm cartridge with a longer streamlined bullet with steel core.

It utilizes a short-stroke gas piston, located above the barrel, and three-lug rotating bolt.

The QBU-88 rifle is equipped with open, diopter-type adjustable sights, mounted on folding posts.

It also has a short proprietary dovetail rail on the receiver which can accept telescope or night sight scope mount.

The standard day optic used on the QBU-88 for military use is a Chinese 3-9×40 scope with an integral quick-release mount.