STL-1A

It was originally announced in 2015 that the Z111 Factory would begin producing STL-1A rifles[4] in an occasion to celebrate Vietnamese National Day for Vietnamese defense industry accomplishments.[5] As the STL-1A is based on the older AKM rifles, the factory would convert AKMs and its variants into the new STL-1A rifles. The factory also has the ability to produce these new rifles from scratch.

At the Indo Defence Expo 2018 event, a new variant which combined the STL-1A and the Galil ACE was announced under the name GK3.[6][7]

After several phases of testing, the People's Army of Vietnam has started to equip soldiers with the STL-1A.[3]

Although the rifle itself is a copy of the AKM that highly resembles a Vietnamese version of an AK-103,[3] it's upgraded in many areas such as new polymer handguards, folding stock, a new ergonomic pistol grip and muzzle brake based on the AK-74 with side-mounted rails to attach scopes.[8][3]

A suppressor and an M203 underbarrel grenade launcher can be attached to the STL-1A.[8]