page_title: CZ 805 BREN
section_title: Design
hierarchical_section_title: CZ 805 BREN / Design
caption_attribution_description: English: A Czech soldier provides security while his convoy is stopped during Operational Mentor Liaison Team training May 7, 2012, at the Joint Multinational Readiness Center in Hohenfels, Germany. OMLT training is designed to prepare NATO forces for full-spectrum operations in Afghanistan. Police OMLT training prepares civilian police officers to train members of the Afghan National Police. (U.S. Army photo by Spc. Tristan Bolden/Released)
context_page_description: The CZ 805 BREN modular rifle is a gas-operated selective fire self-loading rifle with a rotating breechblock and cold hammer forged chrome lined barrel manufactured by CZUB. The modular design currently enables users to change the calibre of the weapon to 5.56×45mm NATO or 7.62×39mm intermediate cartridges by quick change of barrel with gas tubes, breech block, magazine bay and magazine.
  The CZ 805 BREN, CZ 807, CZ BREN 2 and CZ BREN 2 BR were created by Česká zbrojovka Uherský Brod in 2006 to replace the Sa vz. 58 in the Czech Army.
  The CZ 805 BREN is used by the Czech military, Indonesian special forces and Mexican police. In 2014, Slovak Army began to replace its vz. 58 rifles with CZ 805 BREN. In November 2016, the Czech Army received its first batch of CZ BREN 2 modular assault rifles. In 2017, French GIGN received 68 CZ BREN 2 assault rifles chambered in 7.62×39mm and is expected to order more, in order to replace most of its Heckler & Koch HK416. The CZ BREN 2 in 7.62×39mm was also issued to Egyptian airborne forces and Republican Guard in 2017 and 2018 respectively.
context_section_description: The CZ 805 BREN utilises a well-proven locked breech principle with rotating breech block and its automatic function is driven by combustion gases tapped from the barrel with option of two-stage regulation of piston mechanism. The weapon is gas-operated and features a rotating bolt and a manual gas regulator.
  The CZ 805 BREN assault rifle is fitted with folding iron sights, but also includes an integral Picatinny rail on top of the receiver and is capable of accepting a wide variety of additional sighting equipment (red-dot or telescope day sights, night sights, lasers etc.). The weapon is equipped with side-folding buttstock, which is adjustable for length of pull, and can be completely removed if maximum compactness is required. Additional equipment also includes a new, specially designed 40 mm underbarrel grenade launcher and a bayonet.
  The fire control unit includes ambidextrous safety/fire selector switch, which permits semi-automatic, 2-round bursts and full automatic fire.
  The charging handle can also be installed on either side of the weapon, depending on user preferences. The CZ 805 BREN has two barrel lengths. A 360 mm (14.2 inch) barrel length for the standard assault rifle variant, the CZ 805 BREN A1 and a 277 mm (10.9 inch) barrel for the carbine variant, the CZ 805 BREN A2. The barrel is chrome-lined to ensure a very high accuracy and durability.
  The rifle features a magazine housing which is a separate detachable unit, which can be replaced easily to allow the use of STANAG or HK G36 5.56×45mm NATO magazines. It is also capable of housing a 5.56×45mm NATO 100-round Beta C-Mag. In standard configuration, the CZ 805 BREN uses a 5.56×45mm NATO proprietary 30-round magazine made of transparent polymer which is made by CZUB.
caption: Czech paratrooper with the CZ 805 BREN A2 carbine.
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