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FB MSBS Grot
The MSBS-5.56 (Modułowy System Broni Strzeleckiej kalibru 5,56mm, "Module-based Firearm System 5.56mm Calibre") is a Polish next-generation modular rifle system developed by Fabryka Broni Radom as a replacement for AK-pattern rifles in Polish service. Consisting of a common upper receiver and handguard, the rifle can be configured with different lowers as either a traditional layout (MSBS-5.56K) or bullpup layout (MSBS-5.56B). Modular parts are planned to allow both configurations to be built up as standard rifle, squad support weapon, compact carbine or marksman rifle. While during development it was known as the Radon, a name first announced in 2010, in 2017 it was announced the rifle will officially be known as the Grot (a word used for various pointed weapons such as arrows, darts and javelins): this replaces both the old Radon name and seemingly also the MSBS name.
The Polish Ministry of Defense created a new naming scheme after ordering 53,000 rifles. The name of each rifle will be in the formula Grot (C, B or R for standard, bullpup and "representative" (inert drill) layout)(10, 16 or 20 for barrel length in inches)(nothing, G, M or PS for assault rifle, grenadier, machine gun or DMR)FB-M(series number). FB here stands for the manufacturer's name and M is a model number. So, for example, a Grot C16GFB-M1 would be a standard layout series 1 rifle with a 16-inch barrel and a grenade launcher.
A grenade launcher module, GPBO-40, is also part of the system, with a standalone version called GSBO-40.
A 7.62mm variant has also entered the prototype phase.
Specifications
(Development 2007-2015, production 2017-present)
- Manufacturer: Fabryka Broni Radom
- Type: Modular Rifle: common upper receiver with conventional and bullpup lowers: both have assault rifle, compact carbine, light support weapon, and designated marksman rifle configurations
- Caliber: 5.56x45mm NATO
- Length: 38.6 in (98 cm) Standard, 28.3 in (72 cm) Bullpup
- Barrel length: 10 in (25.4 cm),16 in (40.6 cm), 20 in (50.8 cm)
- Feed System: STANAG magazines
- Fire Modes: Semi-Auto / 3-Round Burst / Full-Auto
The FB MSBS Grot and variants can be seen in the following films, television series, video games, and anime used by the following actors:
Video Games
| Game Title | Appears as | Mod | Notes | Release Date |
|---|---|---|---|---|
| Call of Duty: Ghosts | MSBS | with various attachments | B model, based on 3D printed design mock-up | 2013 |
| Survarium | MSBS Radon | K model | 2015 | |
| Cross Fire | MSBS | K model | 2016 | |
| Warface | "MS RADEK" | B model | 2016 | |
| Sniper: Ghost Warrior 3 | "Archer AR-15" | with integral foregrip and more ergonomics | K model | 2017 |