Unlike the standard TBQ-3 that it provides support for, the QJY-99 does not feature a lightweight, ported barrel to vent gyrojet exhaust sideways to reduce recoil. Instead, it features a conventional, smooth-bore barrel made out of steel hyper-alloy. This drastically increases projectile velocity, lending the weapon anti-material capability at the expense of drastically reduced projectile steering and aim assist. Unconventionally, this barrel features a radial heat sink system and forced cooling shroud reminiscent of the ancient Lewis Gun. Despite this measure to prevent overheat, a carry handle for rapid barrel swapping is present, and its position may be changed to allow for use as a fore-grip as well.
Its design quirks however, do not end there, as the internal firing mechanisms are electrically driven, much like many autocannons and chain-guns. The ammunition box has a dust cover that is turned aside, and is inserted similar to a magazine from below. After that, the belt from the under-slung box or drum is pulled up by the mechanism, de-linked and fed into the chamber, with the rotary bolt locking closed behind it. The disintegrating belt is ejected out from the side, with the dust cover opening as the weapon operates. Perhaps just as importantly, dud ammunition is ejected out from the opposite side.
As a result of this operating system, the weapon is absolutely peerless in reliability and of reasonable weight thanks to the extensive use of materials such as titanium poly-alloy composites. In the field, the weapon is typically accompanied by a 200 round belt box, but may also be attached to an ammunition backpack via belt chute.
- Rate of Fire: 20 Rounds per Second as Standard (Fully Variable)
- Ammunition: 7.62x40mm Huangfeng (黃蜂)
- Belted Magazine Size: 200
- Effective Range (Point Target): 2000 Meters
- Power: Anti-Material