Radom Beryl GROT Modular Firearm System

GROT C16 FB-M1  is modular assault rifle system currently under development by the Fabryka Broni „Łucznik” – Radom. It is a state of the weapon platform with unique features.

The MSBS-5.56 is fully designed and manufactured in Poland. The modular firearms system with quick-change barrel is based on a common upper receiver for a conventional (with folding, telescopic stock) or bullpup design.

Thanks to variety of modules the conventional and bullpup design variants can be easily transformed into:

• Assault rifle
• Assault rifle with underbarrel grenade launcher
• Carbine
• Carbine with underbarrel grenade launcher
• Designated marksman rifle
• Light support weapon

The modular design also allows for adding further configurations in the future. A quick mission-tailored weapon down at the individual end-user level. Highly ergonomic and fully ambidextrous. The Grot assault rifle is fed by a 5.56 mm x 45 NATO intermediate cartridge, but a MSBS-7.62 battle rifle for 7.62 mm x 51 NATO rifle cartridge is also under development.

Technical data:

Cartridge:	5,56 x 45 mm NATO
Muzzle velocity:	V0= 890 m/s
Muzzle energy:	1 600J
Action:	gas-operated
Firing modes:	single, 3-rounds burst, full auto
Rate of fire:	700÷900 strz./min.
Effective range:	~500 m
DIMENSIONS:
Length with stock extended/retracted:	clasical  design 900/843 mm
	bull-pup design 675 mm
Barrel length:	406 mm
Rifling twist rate:	6/178 mm
Sights:	mechanical and optoelectronic mounted on Picatinny rail