C16 FB-A2 carbines. According to its provisions, by the end of 2026, another 88,000 will be delivered to the Polish Armed Forces for PLN 1 billion gross. As a result, the entire order will cover a total of nearly 184,000 carbines, and the total value of the contract will be approx. PLN 2.1 billion gross. Variants The following variants were designed based on the requests from the Polish Armed Forces to replace currently used firearms such as the AKM, FB Beryl, FB Mini-Beryl, and Pallad grenade launcher. MSBS Grot C (, ) is the classic variant of the rifle chambered in either 5.56×45mm NATO cartridge with a folding and retractable stock. MSBS-5,56A0 - initial production, 1,000 produced. FB-M1 (MSBS-5,56A1) - first production batch: modified charging handle and additional strap mount point on the picatinny rail. FB-M2 (MSBS-5,56A2) - second production batch: longer handguard to cover the gas block, reinforced firing pin for dry fire practice, improved pistol grip and buttstock. MSBS Grot B (, ) – the bullpup variant of the rifle chambered in 5.56×45mm NATO cartridge. MSBS Grot 762N – semi-automatic marksman rifle cal. 7.62x51 mm in two versions, with a barrel length of 20 and 16 inches MSBS Grot R – is the representative variant of the rifle designed to be used by honour guards which has been adapted to fire blanks and withstand drills. With the modularity of the rifle, the barrel can be swapped to fire live ammunition. Grot S – civilian semi-auto version without bayonet-mount, available with 4 variants of barrels (2022): 10.5, 14.5, and 16 inch in .223 Remington and 16 inch in 7.62×39mm. The MSBS GROT is a selective fire modular assault rifle which is capable of semi-automatic, 3-round burst and fully automatic fire. It has a cyclic rate of fire of around 700–900 rounds per minute. Both the Classic and Bullpup variants are planned in 5 different configurations and have many common interchangeable parts and can be in future converted from one to the other.: Assault rifle – a standard assault rifle configuration with barrel. Assault rifle with underbarrel grenade launcher – similar to the assault rifle configuration but with a 40×46mm underbarrel grenade launcher equipped. Carbine – a short barrel variant with a barrel. Carbine with underbarrel grenade launcher – similar to the carbine configuration but with a 40×46mm underbarrel grenade launcher equipped. Squad automatic weapon – a variant equipped with