OC-14 "Groza"
Summary
| Country | 🇷🇺 Russia |
| Category | Bullpup assault rifle |
| Manufacturer | CKIB SOO |
Technical specifications
| OC-14 "Groza" | |
|---|---|
| Fire Rate | 750 rounds/min. |
| Caliber | 9 x 39 mm or 7.62 x 39 mm |
| Magazine | 30 rounds |
| Length | 700 mm (27.6 in) |
| Weight | 3.2 kg (7.1 lb) |
| Range | 450 m (1476 ft) |
Description
The OTs-14-4 "Groza-4" was developed in the 1990s at the TsKIB SOO in Tula, Russia, through a collaboration between chief designers Valery Telesh and Yuri Lebedev. Building on experience from the OTs-12 Tiss, the team aimed to create a modular bullpup system integrated from the AKS-74U base. Work began in December 1992, with prototypes ready for testing within a year, and production commenced in early 1994. The weapon was first publicly shown at the MILIPOL Moscow trade show in April 1994 and subsequently adopted by the Ministry of Internal Affairs (MVD). Its effectiveness led to interest from the Ministry of Defence (MO), resulting in its adoption for Spetsnaz and certain airborne and specialist units. Originally conceived for multiple cartridges, the initial version was chambered in 9×39mm to meet MVD requirements for a close combat weapon employing subsonic ammunition, suitable for quieter engagements.
The OTs-14 "Groza" utilizes the internal mechanism of the AKS-74U, adapted to a bullpup configuration, and operates via a gas-operated piston with a rotating bolt locking mechanism. It fires from a closed bolt with a hammer-type firing mechanism. A key design feature is its modularity, which allows for the swapping of the trigger and pistol grip unit with an assembly that incorporates an integrated 40 mm grenade launcher, compatible with GP-25/GP-30 grenades. When the grenade launcher is attached, a selector switch allows the operator to choose whether the rifle or grenade launcher barrel is fired by a single trigger. The safety and firing mode selector mirror the AKS-74U pattern, and the barrel is designed to accept a quickly detachable suppressor. An integral carrying handle provides a mounting platform for optical, red dot, or night vision sights and houses iron sights consisting of an adjustable rear aperture and front post, with range graduations up to 200m.
Several variants were developed based on the OTs-14 platform:
- OTs-14-4A 9/40 "Groza-4" (primary model, 9×39mm, often with integrated grenade launcher)
- OTs-14-4A-01 (rifle with foregrip)
- OTs-14-4A-02 (carbine threaded for suppressor)
- OTs-14-4A-03 (sniper with suppressor threading and optical sight mount)
- OTs-14-1A "Groza-1" (7.62×39mm, shares parts with AKM rifles, magazines compatible with AK-47/AKM)
Experimental versions included the OTs-14-2A in 5.45×39mm and OTs-14-3A in 5.56×45mm NATO, but neither were widely adopted.
The Groza has seen limited operational deployment, including during the Second Chechen War and the Russo-Georgian War, and remains in use by some units of Russian police forces. Users of the OTs-14 Groza include Georgia and Russia, where it was used by MVD forces in Chechnya.