The StA-52 Assault Rifle comes from the Helldivers x Killzone crossover pack. It was sold in the Superstore during the event for 615 Super Credits. Anyone who bought it then got to keep it forever in their gear. Right now, it may not show up in the shop, but players should watch the store updates because it might return again. If you still need Super Credits, you can look for cheap Helldivers 2 Super Credits to help unlock items like this faster.

The StA-52 is classified as a Primary Weapon under Assault Rifles. It excels at high rate of fire and strong sustained damage output.
It uses 5.5×50mm Full Metal Jacket-P rounds with a projectile velocity of 900 m/s.
Players often compare the StA-52 to the AR-23 Liberator and AR-23A Carbine. It has higher magazine size (56), making it excellent for clearing groups of light-armored enemies with fewer reload interruptions.
Pros
Cons
The StA-52 is best suited for short-to-mid range fights, where its fast fire rate and big magazine shine. However, it is not a complete solution against heavily armored foes, so you should pair it with:
Its flashlight can help in dark missions, but it does not feature a laser sight like the AR-23.
Pro Tip: Use short, controlled bursts to maintain accuracy and avoid excessive recoil.
The StA-52 does not support attachments. Players will need to rely on their own skill with iron sights. This makes it less flexible compared to other rifles with scope options.
On community forums like Reddit, players note that the StA-52 is a fun, nostalgic addition for fans of the Killzone series. Many praise its magazine size and rate of fire, but criticize its ammo limitations and weak armor penetration. Most agree it is a solid crowd-control rifle, but not a replacement for the AR-23 against armored enemies.
The StA-52 Assault Rifle is a powerful weapon for mowing down hordes of light-armored enemies, offering high DPS and big magazines. However, due to its Light AP limitation and limited ammo pool, it works best as part of a balanced loadout where other weapons cover its weaknesses.