Norinco LG5 / QLU-11
The QLU-11 or LG5 is a semi-automatic grenade launcher developed by Norinco and introduced in 2011. The launcher's designation "QLU" stands for "light weapon (Qīng Wŭqì) - grenade (Liúdàn) - sniper (Jūjī)" in Chinese military coding standard. Description. The LG5/QLU-11 can be equipped with free-floating barrel, a fire-control system with a laser rangefinder, thermal imaging capability, and a ballistic computer that gives it air burst capability. The QLU-11 was tested in combat against Somali pirates in the Gulf of Aden by Chinese marines. The LG5/QLU-11 is designed for long-range use and so  has been described as a "sniper" grenade launcher. Befitting that designation, it is said to have a very high accuracy of 3-round R100 accuracy of 1 meter at 600 meter range, meaning that with proper aiming the weapon can put three successive high-explosive rounds into a typical window or door. Its development was inspired by the American Barrett XM109 anti-materiel rifle, which fires 25 × 59 mm grenades, and its design is based on the Chinese HSARI LR2 .50 caliber anti-material rifle. QLU-11 utilizes new Type 11 precision cartridge that derived from the DFJ-87 armor-piercing  grenade. The weight is reduced from 217g to 200g due to lighter casing. Propellant takes larger percentage of the cartridge space, thus improving the velocity from 195m/s to 320 m/s. This modification greatly increases the recoil, which QLU-11 features advanced primer ignition (API) blowback, a large muzzle brake, and two sets of buffer mechanism inside the stock to mitigate. Variants. There are two variants of the weapon, an export version and a domestic version: