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SIG M400 vs Smith & Wesson M&P15
Side-by-side technical comparison
Smith & Wesson M&P15
RiflesIn production
Overview
Spec
SIG M400
Smith & Wesson M&P15
Production
2010–present
2006–present
Units produced
Unknown
Hundreds of thousands
Specifications
Spec
SIG M400
Smith & Wesson M&P15
Overall length
840–910 mm
840–910 mm
Barrel length
406 mm
406 mm
Weight
3.2 kg
3.1 kg
Magazine capacity
30 rounds
30 rounds
Action type
direct impingement
direct impingement
Trigger type
single-stage
single-stage
Sights
Flip-up or optics-ready
Flip-up or none (optics-ready)
Calibers
Smith & Wesson M&P15