The L4A1 is nothing more than a WWII-era modified Bren gun, the .303 series fires the standard 7.62x51mm NATO cartridge. The success of the original Bren series in global conflicts cemented the Bren's position as a front-line light machine gun for the British Army.
The problem was that the .303 cartridge quickly realized its time was over. Since the NATO-adapted 7.62x51mm cartridge is the Western standard, it was decided to update the Bren system. Having established an ideal cartridge panel in 1945 to find such a replacement, Bren looked ready for a brand new one.
280 frameless circular design. However, it was soon decided that it would be better to switch to the American 7.62 T65E3 shell, so the 7.62mm series of Bren guns was born.
The 7.62mm series shares many similarities with its wartime counterparts and plays the same role as the Bren before it. One noticeable difference between the two is the curvature of the 30-round detachable magazine, which appears straighter in the new design to accommodate the spacing of the new cartridges in the new magazine.
Bren's wartime bloodline proved solid and translated well to L4A1.
As several earlier models were slightly different, the L4A4 became the final model and standard for the series. The weapon system comes with a replacement chrome barrel, and the carry handle is inherited from the original Bren design. The weapon system can be mounted on a tripod for continuous fire, and ammunition can also be fed from above like the Bren. 303. The straightened magazine is indeed a distinguishing feature between the two, as the two units look very similar.
L4A4 was split into some rare Mk IIs. 303 Brens and the more common Mk III models, many of which were in high demand after the war.
To this day, even with the 5.56mm composite L86 LSW (detailed elsewhere on this page) in the British Army, many still swear by the reliability and firepower of the Bren system. The Indian Army produced their own Buren through Ishapur.
303 Mk 3 conversions, both accept 7.62x51mm cartridges and are designated "IA".
- Fire Support/Suppression/Defense
1,133 mm (44.61 in)
635 mm (25.00 in)
22.05 lbs (10.00 kg)
Front and rear iron
Gas powered; selective fire
2,440 ft/s (744 m/s)
500 rounds per minute
5,550 ft (1,692 m; 1,850 yd)
L4A1 - Mk 3 Bren Gun modified from .303 to fire standard 7.62mm NATO cartridges; Published 1957; Bipod Mk 1; Steel barrel.
L4A2 - Modification of the Mk 3 Bren gun released from 1959 to 1961; lighter bipod; steel barrel.
L4A3 - Mk 2 Bren Gun modification; barrel with chrome holes; limited production.
L4A4 - L4A2 series with chrome replacement barrels; some were converted from the Mk 2 brand, but in limited quantities, Mk 3 conversions are more common.
L4A5 - Royal Navy approved variant; from . 303 Mk 2 model; chromed steel drum; released April 1960.
L4A6 - Modified L4A1 model to accept the "perfect" L4A1 magazine on the L3A2 magazine; redesigned barrel with chrome holes; published November 1960.
L4A9 - Conversion model with L7 series "dovetail"
IA - Indian Army from .303 Mk 3 Bren gun.