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Heckler & Koch HK416 vs SIG SG 553
Side-by-side technical comparison
Heckler & Koch HK416
RiflesIn production
SIG SG 553
RiflesIn production
Overview
Spec
Heckler & Koch HK416
SIG SG 553
Production
2005–present
1990–present
Units produced
Unknown
Unknown
Specifications
Spec
Heckler & Koch HK416
SIG SG 553
Overall length
700–900 mm
733 mm
Barrel length
228–420 mm
246 mm
Weight
3.1–3.9 kg
3.1 kg
Magazine capacity
30 rounds
20 rounds
Action type
short-stroke gas piston
Short-stroke gas piston
Trigger type
single-stage
Single stage
Sights
Iron sights or optics
Adjustable diopter rear with front post
Calibers
Heckler & Koch HK416
SIG SG 553