SIG SAUER, INC. - M400 5.56 NATO SEMI-AUTO RIFLE W/ROMEO-MSRTM GEN II

SIG SAUER M400 5.56 NATO SEMI-AUTO RIFLE W/ROMEO-MSRTM GEN II

The SIG SAUER M400 FORGE is a duty‑ready AR‑style rifle engineered for reliability, accuracy, and modern handling. Built around a 16” cold hammer forged barrel with a mid‑length gas system, the M400 FORGE delivers smooth recoil impulse, extended barrel life, and consistent performance across a wide range of ammunition.

A premium TriggerTech 3.5‑lb two‑stage flat‑blade duty trigger provides a crisp, predictable break ideal for both precision shooting and defensive applications. Combined with a 15” M‑LOK handguard, ambidextrous controls, and a MAGPUL SL‑K adjustable stock, the M400 FORGE offers a well‑balanced, configurable platform ready for hard use at the range, on duty, or in competition.

FEATURES

• 16” Cold Hammer Forged Barrel – Mid‑length gas system for reliable cycling and reduced recoil
• TriggerTech Two‑Stage Duty Trigger – 3.5‑lb pull with flat blade design
• 15” Free‑Float M‑LOK Handguard – Full‑length Picatinny rail for optics and accessories
• Ambidextrous Charging Handle – Enhanced control for right‑ or left‑handed shooters
• MAGPUL SL‑K Stock – Six‑position adjustable stock for length‑of‑pull customization
• Forged Alloy Receiver Set – Lightweight strength with anodized finish

SPECS

• Caliber: 5.56 NATO
• Barrel Length: 16
• Barrel Twist: 1:7
• Gas System: Mid‑Length
• Overall Length: 32.25 (collapsed) / 35.5 (extended)
• Overall Width: 2.7
• Weight (w/ magazine): 6.8 lb
• Receiver Material: Alloy
• Finish: Anodized
• Trigger: TriggerTech 2‑Stage Flat Blade, 3.5 lb

ROMEO‑MSR GEN II RED DOT

The ROMEO‑MSR Gen II is a rugged, lightweight red dot designed for fast target acquisition and dependable performance. Featuring a 2 MOA dot, long battery life, and a durable, waterproof housing, it provides a simple and effective optic solution for the M400 FORGE platform.

SPECS

• Optic Type: Red Dot Sight
• Magnification: 1x
• Objective Lens: 20 mm
• Reticle: 2 MOA Dot (Red)
• Illumination Settings: 12 (10 Day / 2 NV)
• Battery Type: CR2032
• Battery Life: Up to 35,000 hours
• Mount Height: Absolute Co‑Witness
• Water Resistance: IPX‑7
• Weight: 5.7 oz