AK4D vs SIG SG 552 Commando

1998–Present

1998–present

~2,500 units (estimated)

Unknown

950 mm (37.4 in) with stock extended, 770 mm (30.3 in) folded

730 mm (stock extended)

508 mm (20 in) standard, 406 mm (16 in) for AK4 base model

226 mm

3.45 kg (7.6 lb) empty, 3.75 kg (8.3 lb) with bipod and optics

3.10 kg

30 rounds standard STANAG, 20/40 round magazines compatible

30 rounds

Short‑stroke gas piston, rotating bolt, closed‑bolt operation

Gas-operated, rotating bolt

Two‑stage military trigger, adjustable pull weight for designated‑marksman role

Selective fire

Standard AK4 iron sights (adjustable rear aperture, hooded front post) plus provision for 4×24 telescopic sight and optional flip‑up night sights

Diopter rear, post front