Precision, ambidextrous ergonomics, and competition-proven components define the modern 3-Gun rifle. Shooters who demand a ready-to-run platform out of the box want features that matter on the chrono line and downrange under time pressure.

SIG SAUER M400-DH3 — developed by Team SIG’s Daniel Horner after two years refining the SDI Comp Rifle — is SIG Custom Works’ first dedicated competition rifle. It pairs full-ambi controls, a Timney DH3 Two-Stage Trigger, and a custom DH3 Adjustable stock with a fluted stainless 223 Wylde barrel and a 3 Chamber Compensator to reduce muzzle rise. Shop this product

Why the SIG SAUER M400-DH3 excels in competition

Every component on the SIG SAUER M400-DH3 is selected for speed, control, and repeatable accuracy. The new SIG-designed ambi bolt-catch and bolt-release give both right- and left-handed shooters the same fast manipulations during re-loads and transitions. Combined with full-ambi controls, the rifle is set up to minimize handling delays on dynamic stages.

Trigger, stock, and muzzle control

The Timney DH3 Two-Stage Trigger provides a crisp, predictable pull ideal for rapid strings and precise follow-up shots. The custom DH3 Adjustable stock allows quick cheek and length-of-pull adjustments to tailor fit optics and shooter posture. At the muzzle, the 3 Chamber Compensator tames rise, returning sights to target faster for stage-winning splits.

The advantage of a 223 Wylde barrel

The fluted stainless 223 Wylde barrel on the SIG SAUER M400-DH3 balances weight reduction and heat dissipation while delivering excellent accuracy. 223 Wylde chambers are engineered to safely and precisely shoot both 5.56 NATO and .223 Remington ammunition—making the rifle versatile across different match requirements and ammunition availability.

Derived from the SDI Comp Rifle and ridden to success by 10-time 3-Gun champion Daniel Horner, this platform brings race-proven geometry and control into a vendor-ready package at $1999.99. The build is ideal for competitors who want minimal aftermarket work and immediate stage readiness. View product details and pricing

Who should consider this rifle

Competitive 3-Gun athletes, serious club-level shooters, and anyone seeking a factory-tuned race rifle will appreciate the SIG SAUER M400-DH3’s combination of ambidextrous controls, match-grade trigger, adjustable stock, and a competition-optimized barrel/compensator package. Check current availability and secure a race-ready platform through the shop page linked below. Check availability

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