GAU-19/A vs M2 Browning

1983–present

1933–Present

Unknown

~1,000,000+ units (cumulative across all variants and manufacturers)

1400 mm (55.1 in)

1,651 mm (65 in) with stock, 1,219 mm (48 in) for tripod mount only

914 mm (36 in) per barrel

45.7 cm (18 in) standard, 57.2 cm (22.5 in) for aircraft variants

36.50 kg (80.5 lb) gun only

38.5 kg (84.9 lb) empty, 30.5 kg (67.3 lb) with tripod

Linked ammunition, typically 200-500 rounds

100‑round fabric belt standard, 50‑round drum (M2HB), 200‑round linked belt optional

Electric-driven rotary

Short‑recoil, toggle‑locked, belt‑fed, open‑bolt operation

Electric solenoid

Single‑stage, mechanically simple trigger with manual safety lever

Reflex sight or electronic fire control

Adjustable leaf rear sight (0–2,000 m) and front post; optional optical or night vision mounts