SIG Sauer M400 XSERIES SDI
Best professional-grade rifle for shooters demanding precision and ambidextrous versatility.
This rifle bridges the gap between a standard duty platform and a precision-tuned competition tool. By integrating professional-grade ambidextrous controls and a crisp, match-grade trigger right out of the box, it sacrifices the simplicity of a basic build for immediate, high-performance capability.
$1499.99
at
Impact Guns
Who it's for
- Serious shooters demanding duty-grade reliability and long-term durability
- Customizers seeking an adaptable platform with modern ergonomic controls
- Marksmen needing reliable precision for range or field use
Who should skip it
- Budget-conscious buyers looking for entry-level pricing
- Shooters preferring low-maintenance, cooler-running piston systems
- Competitors prioritizing minimal weight for rapid movement
Performance breakdown
Trigger Precision
Matchlite Duo trigger offers a crisp, consistent break for rapid follow-ups.
Ergonomic Versatility
Fully ambidextrous controls accommodate shooters of all dominant hands seamlessly.
Structural Rigidity
Steel lockup handguard design minimizes deflection during high-intensity shooting sessions.
Durability Rating
Proprietary performance coating provides robust protection against harsh environmental wear.
Accessory Integration
Four-sided mounting points offer ample space for lights, lasers, and optics.
Out-of-Box Readiness
SENTRY configuration includes a pre-installed optic for immediate range-ready performance.
Key Specs
Caliber
5.56 NATO
Barrel Material
Chrome and Moly Steel
Barrel Length
16 inches
Twist Rate
1:7
Threads
1/2 inch-28 tpi
Operating System
Mid-Length Direct Impingement
Trigger
SIG 2-Stage Matchlite Duo
Overall Length
36.5 inches
Weight
7.0 lbs
Magazine Capacity
30 rounds
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