Sig Sauer M400 Forge Concrete Gray Rifle 5.56 NATO 30rd Magazine 16" Barrel ROMEO-MSR GEN II Adjustable Stock M-LOK Handguard
$1,043.50
Experience precision and performance with the Sig Sauer M400 Concrete Gray Rifle, chambered in 5.56 NATO. This versatile rifle features a 16″ cold hammer forged barrel and comes equipped with a ROMEO-MSR Gen II red dot sight for quick target acquisition. With a 30-round magazine and an ambidextrous charging handle, it’s perfect for both competitive shooting and home defense.
15 in stock
Features:
- TriggerTech 3.5 pound two-stage flat blade duty trigger
- 16" cold hammer forged barrel with mid-length gas system
- ROMEO-MSR Gen II 2 MOA red dot included
- Full-length free-floating M-LOK handguard
- Ambidextrous charging handle
- MAGPUL SL-K 6-Position adjustable stock
Specifications:
- FIREARM TYPE: Rifle
- CALIBER: 5.56 NATO
- SIGHTS: ROMEO-MSR GEN II w/2 MOA DOT
- BARREL LENGTH: 16 in [406.4 mm]
- BARREL MATERIAL: Cold Hammer Forged Steel
- TWIST RATE: 1:7
- THREADS: 1/2 in – 28 90 Degree Shouldered
- MUZZLE DEVICE: A2 Birdcage Flash Hider
- ACTION TYPE: Semi-Auto
- OPERATING SYSTEM: Mid-Length Direct Impingement
- STOCK TYPE: 6-Position Magpul SL-K
- GRIP TYPE: Reduced Angle
- TRIGGER TYPE: TriggerTech 3.5-Pound 2-Stage Flat Blade
- TRIGGER SHAPE: Flat
- MANUAL SAFETY: Ambidextrous
- FOREND TYPE: M-LOK Concrete Gray Cerakote
- ACCESSORY RAIL: M-LOK/Full-Length Picatinny
- MAG TYPE: AR-15
- MAGS INCLUDED: (1) 30rd Polymer Mag
- COLOR: Concrete Gray
- RECEIVER FINISH: Concrete Gray Cerakote
- OVERALL LENGTH: 35.5 in [901.7 mm]
- COLLAPSED LENGTH: 32.25 in
- OVERALL WIDTH: 2.7 in [68.58 mm]
- HEIGHT: 9.4 in [819.15 mm]
- WEIGHT: 6.8 lb [3084.43 kg]
| Weight | 9.900 lbs |
|---|---|
| Dimensions | 46.500 × 11.500 × 4.000 in |
| Manufacturer | Sig Sauer |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.
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