Mossberg 500 vs Stevens Model 77

1964–Present

1957–1985

10,000,000+ units (cumulative worldwide)

Unknown

965 mm (38 in) with stock extended; 864 mm (34 in) with stock collapsed (tactical models)

1181 mm

406 mm (16 in) standard; 457 mm (18 in) and 508 mm (20 in) options

711 mm

2.95 kg (6.5 lb) empty (12‑gauge, 18‑in barrel)

3.18 kg

5+1 rounds standard; 6+1, 7+1, 8+1 tube extensions available; detachable box magazines up to 5 rounds

5 rounds (tubular magazine)

Pump‑action, slide‑action bolt with dual‑action locking lug; steel receiver with anti‑jam bolt design

Pump-action, rotating bolt