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M1918 Browning Automatic Rifle

Mass
7.25 kg (15.98 lb) (M1918)
approx. 11 kg (24 lb) (M1922)

6.0 kg (13.2 lb) (Colt Monitor)
8.4 kg (19 lb) (M1918A1)
8.8 kg (19 lb) (M1918A2)
9.0 kg (19.8 lb) (wz. 1928)
Length
1,194 mm (47.0 in) (M1918, M1922, M1918A1)
1,215 mm (47.8 in) (M1918A2)
1,110 mm (43.7 in) (wz. 1928)
Barrel length
610 mm (24.0 in) (M1918, M1922, M1918A1, M1918A2)
611 mm (24.1 in) (wz. 1928)
458 mm (18.0 in) (Colt Monitor)
Cartridge
.30-06 Springfield (7.62×63mm)/.303 British (7.7×56mmR)/7.92×57mm Mauser (M1918, M1922, M1918A1, M1918A2)
7.92×57mm Mauser (wz. 1928)
6.5×55mm (Kg m/21, m/37)
Action Gas-operated, rising bolt lock
Rate of fire
500–650 rounds/min (M1918, M1922, M1918A1)
500 rounds/min (Colt Monitor)
300–450 or 500–650 rounds/min (M1918A2)
600 rounds/min (wz. 1928)
Muzzle velocity
860 m/s (2,822 ft/s) (M1918, M1922, M1918A1, M1918A2)
853 m/s (2,798.6 ft/s) (wz. 1928)
Effective firing range 100–1,500 yards (91–1,372 m) sight adjustments (maximum effective range)
Maximum firing range approx. 4,500–5,000 yards (4,100–4,600 m)
Feed system
20-round detachable box magazine (7oz empty; 1lb, 7oz full)
40-round detachable box magazine (14 oz empty; 2lb 7oz full. Used for anti-aircraft)
Sights
Rear leaf, front post
784 mm (30.9 in) sight radius (M1918, M1922, M1918A1)
782 mm (30.8 in) (M1918A2)
742 mm (29.2 in) (wz. 1928)