AK4D vs AR-15

1998–Present

1964–Present

~2,500 units (estimated)

12,000,000+ units (combined military, law‑enforcement, and civilian production)

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

840 mm (33.1 in) with stock extended (16 in barrel), 730 mm (28.7 in) with stock collapsed (14.5 in barrel)

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

406 mm (16 in) standard, 368 mm (14.5 in) carbine, 508 mm (20 in) designated marksman, 254 mm (10 in) pistol‑length

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

3.2 kg (7.1 lb) empty (16 in barrel, without optics)

30 rounds standard STANAG, 20/40 round magazines compatible

30 rounds standard, 10/20/40/60 round options, drum magazines up to 100 rounds

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

Direct‑impingement gas system (original) or short‑stroke gas piston (aftermarket/variant), rotating bolt, semi‑automatic or select‑fire

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

Single‑stage semi‑automatic trigger; military select‑fire models use a two‑stage fire selector with safe, semi, burst, and automatic modes

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

Standard: detachable flip‑up rear iron sight and fixed front post; many models equipped with Picatinny rail for optical, holographic, or night sights