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Assault Rifle [ 1985 ]

The IMBEL MD-2 is part of the IMBEL MD automatic rifle line making up the standard Brazilian Army assault weapon.

Authored By: Staff Writer | Last Edited: 05/02/2016 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

The MD-2 is part of a family of standard Brazilian assault rifles serving the modern Brazilian Army. The MD series, as a whole, traces its roots back to the excellent Belgian Fabrique-Nationale FN FAL service rifle and can be considered a revised extension of this series. The rifle family consists of the original MD-1 prototype and the base production MD-2 as well as the evolved MD-3 and MD-4 models. While the original FN FAL was chambered to fire the 7.62mm NATO standard cartridge, the Brazilian MD series is chambered to fire the 5x56x45mm NATO cartridge - the same cartridge as utilized by the American M16 service rifle. The MD rifle line was first designed in 1983 with production beginning in 1985 under the IMBEL brand labeling. To date, the rifle has served with the Brazilian Army, Navy and police forces. The MD-2 and the similar MD-3 rifles are differentiated by the former having a folding stock and the latter featuring a fixed solid polymer stock. The MD-4 sports a shorted barrel as well as a side-folding stock.

The MD-2 weighs in at 9lbs, 10oz and features a running length of 39.8 inches with the stock fully extended (the skeletal stock is hinged to fold over the side of the receiver). The barrel measures in at 17.8 inches. The firing action consists of gas-operation (tapped from the barrel) with a rotating bolt system. The feed mechanism is designed to accept various STANAG-type magazines. Rate-of-fire is approximately 700 rounds per minute with an effective listed range out to 328 yards. Sighting is made possible by an aperture rear installation with a hooded front post. Outwardly, the weapon system maintains a rather conventional appearance and layout with the receiver containing all of the important internal workings, the integrated stock and pistol grip/trigger unit and the magazine feed. The barrel runs under the gas cylinder and is encased in a forend housing. A carrying handle can be affixed to the top of the receiver just ahead of the magazine feed.©MilitaryFactory.com
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Service Year

Brazil national flag graphic


Assault Rifle

Industria de Material Belico do Brasil (IMBEL) - Brazil
(View other Arms-Related Manufacturers)
National flag of Brazil Brazil
(OPERATORS list includes past, present, and future operators when applicable)
Automatic Function
Features a mechanical function to automate the firing action.
Assault Rifle
Modern class of long gun featuring select-fire properties, automatic internal function, and magazine feeding.

Overall Length
1,010 mm
39.76 in
Barrel Length
453 mm
17.83 in
Empty Wgt
9.70 lb
4.40 kg

Aperture Rear; Hooded Post Front


Gas-Operated; Rotating Bolt

Rotating Bolt
System utilizes internal mechanism to lock the breech or rear barrel assembly prior to firing.
Gas-operated system is featured, typically involving a gas cylinder and rear-driven piston directing energy to the bolt component.
(Material presented above is for historical and entertainment value and should not be construed as usable for hardware restoration, maintenance, or general operation - always consult official manufacturer sources for such information)


5.56x45 NATO

Rounds / Feed

20- or 30-round detachable box magazine
Cartridge relative size chart
*May not represent an exhuastive list; calibers are model-specific dependent, always consult official manufacturer sources.
**Graphics not to actual size; not all cartridges may be represented visually; graphics intended for general reference only.
Max Eff.Range
984 ft
(300 m | 328 yd)

MD-1 - Prototype Designation
MD-2 - Initial Production Model; based on FN FAL; chambered for the 5.56x45mm NATO cartridge; side-folding stock.
MD-3 - Based on the FN FAL; fixed polymer stock.
MD-4 - Shorter barrel; side-folding stock as in the MD-2.

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Right side view of the Imbel MD-2 assault rifle


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