FN F2000 vs SIG SG 552 Commando

2001–Present

1998–present

~150,000 estimated

Unknown

790 mm (31.1 in) with stock folded, 860 mm (33.9 in) extended

730 mm (stock extended)

508 mm (20 in) standard, 406 mm (16 in) for compact variants

226 mm

2.95 kg (6.5 lb) empty, 3.45 kg (7.6 lb) loaded

3.10 kg

30 rounds standard STANAG, 20‑round and 40‑round drum options

30 rounds

Short‑stroke gas piston, rotating bolt, closed bolt

Gas-operated, rotating bolt

Two‑stage military trigger with fire‑selector lever

Selective fire

Integrated 1.5× optical sight (foldable), backup iron sights, optional Picatinny rail for reflex or night sights

Diopter rear, post front