Battlefield complexity demands a weapon of great firing ability, functioning in hardest climate and ground conditions. The solution is 5.56mm M21S assault rifle. It was designed on the basis of famous Kalashnikov, having accuracy and precision of a sniper rifle and at the same time using grenade launcher.

The most important custom features:
- Ergonomically designed, with perfect balance
- Low recoil
- Light weight and compact
- Highly efficient and reliable locking system proven and safe type of trigger mechanism possibility for night aiming (tritium tubes)
- Polymer stock with possibility of quick change of position
- Magazine made of high-quality polymer made of best possible raw materials
- Hammer forged barrel with chromium plated interior ensuring high accuracy
- The rifle has a built-in “Picatinny” rail, enabling assembly of all optical devices corresponding to NATO standard.
- Quick and simple knife assembly.