990 SPX Magpul - Class 3 vs Remington 870

2015–Present

1950–present

~150,000 estimated

Over 11,000,000

965 mm (38 in) with stock extended, 889 mm (35 in) with stock collapsed

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

508 mm (20 in) standard, 457 mm (18 in) Compact variant

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

3.40 kg (7.5 lb) empty (standard), 3.10 kg (6.8 lb) Compact

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

5+1 rounds standard internal tube, 7+1 with extended tube, 8+1 with aftermarket magazine tube

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

Pump‑action, long‑stroke recoil operation with chrome‑lined barrel and stainless‑steel bolt

Pump action

Dual‑stage, single‑action trigger with adjustable pull weight

Single-stage

Fiber‑optic front bead, rear ghost‑ring sight; optional Picatinny‑mounted night sights

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