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SIG MCX vs SIG SG 553
Side-by-side technical comparison
SIG SG 553
RiflesIn production
Overview
Spec
SIG MCX
SIG SG 553
Production
2015–present
1990–present
Units produced
Unknown
Unknown
Specifications
Spec
SIG MCX
SIG SG 553
Overall length
635–900 mm
733 mm
Barrel length
191–406 mm
246 mm
Weight
2.9–3.6 kg
3.1 kg
Magazine capacity
30 rounds
20 rounds
Action type
short-stroke gas piston
Short-stroke gas piston
Trigger type
two-stage
Single stage
Sights
Flip-up sights, optics rail
Adjustable diopter rear with front post
Calibers
SIG SG 553