Mossberg 590 vs Remington 870

1994–Present

1950–present

~2,500,000+ units (global estimate, including civilian and law‑enforcement sales)

Over 11,000,000

1,016 mm (40 in) with 14‑in barrel; 1,137 mm (44.75 in) with 18.5‑in barrel; 1,219 mm (48 in) with 20‑in barrel

978-1320mm (38.5-52 in) (varies by model)

356 mm (14 in) short barrel variant; 470 mm (18.5 in) standard barrel; 508 mm (20 in) extended barrel

457-762mm (18-30 in) (varies by model)

3.2 kg (7.0 lb) empty (14‑in barrel); 3.4 kg (7.5 lb) empty (18.5‑in barrel)

3.2-3.6 kg (7-8 lb) (varies by model)

5+1, 6+1, 8+1, 10+1, 12+1, 14+1, 16+1, 18+1, 20+1 shells depending on tube length

4+1 to 7+1 rounds (varies by model)

Pump‑action, manually operated sliding fore‑end with rotating bolt lock‑up; chrome‑lined barrel for corrosion resistance

Pump action

Single‑stage trigger with integrated manual safety/trigger lever; ambidextrous safety lever on the top of the receiver

Single-stage

Standard front bead; optional ghost‑ring rear sight on tactical models; some variants equipped with detachable rifle‑style sights

Bead sight, rifle sights, or ghost ring sights (varies by model)