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AK-105 vs M4A1
Side-by-side technical comparison
Overview
Spec
AK-105
M4A1
Production
1994–present
1994–Present
Units produced
Unknown
~10,000,000+ units (including all variants and licensed production)
Specifications
Spec
AK-105
M4A1
Overall length
824 mm (stock extended)
838 mm (33.0 in) stock extended, 756 mm (29.8 in) stock collapsed
Barrel length
314 mm
368 mm (14.5 in) standard; 406 mm (16 in) for the M4A1 SOPMOD variant
Weight
3.2 kg
3.07 kg (6.8 lb) empty, 3.74 kg (8.2 lb) with full 30‑round magazine
Magazine capacity
30 rounds
30 rounds standard STANAG, 20‑round low‑profile, 40‑round drum, 60‑round Beta‑C‑Mag available
Action type
Gas-operated, rotating bolt
Short‑stroke gas piston (M4A1 variant) with rotating bolt; original M4 uses direct‑impingement
Trigger type
Single stage
Two‑stage military trigger, full‑auto only selector on M4A1; semi‑auto on standard M4
Sights
Adjustable rear tangent
Standard: A2 front post and rear flip‑up aperture; optional: MIL‑STD-1913 Picatinny rail for aftermarket optics, tritium night sights, or holographic sights