QTD-20

The QTD-20 was an experimental weapon for the Quantonian Empire. it was developed 500 years after the QTD-12 on the 23/07/2078
The QTD-20 was nicknamed "Jingles" as it had a identifiable jingling sound in the automatic firing mechanism. The QTD-20 looks fairly similar to the QTD-33, (which came out years ahead) just that the QTD-33 had a longer barrel.
The QTD-20 can fire up to 800 rounds per minute and is quite accurate, It has a sight rail along the top and is able to equip grenade launchers underneath. The QTD-20 is very durable and nearly indestructible.
The construction of this weapon is cheaper than the QTD-33 but it is still used today, the QTD-33 and the QTD-20 are the most commonly used assault rifles in the Quantonian Empire.