The AKV-521 is based on the reliable, combat-proven AK platform, adapted for using a wide range of systems for day and night sighting and target flashlight/IR illumination.

The design of AKV-521 allows securely hold link between optics installed on the upper and the barrel inside the upper when the rifle is disassembled for maintenance or a barrel change, boosting the user's confidence in the rifle.

The AKV-521 is split into two major parts:

• The П-shaped upper combines the barrel, gas action, locking assembly, bolt rails, and a 1913-MIL-STD rail for telescopic sights.
• The U-shaped lower combines the trigger assembly, mag well, buttstock, and pistol grip.