Sig Sauer SIGM400 SDI X Rifle 5.56mm 30rd Magazine(1) 16′ Threaded Barrel M-LOK Handguard FDE Finish
$1,599.99
The Sig Sauer SIGM400 SDI X Rifle in 5.56mm features a 16-inch threaded barrel and a semi-automatic action, making it an excellent choice for tactical applications and range training. Equipped with a SIG Flash Hider-Compensator and a 6-position Magpul MOE-SL stock, this rifle offers versatility and adaptability for various shooting scenarios.
Out of stock
Features:
- CALIBER: 5.56 NATO
- SIGHTS: Optics Ready
- BARRELLENGTH: 16 in [406.4 mm]
- BARREL MATERIAL: Chrome / Moly Steel
- TWIST RATE: 1:07
- THREADS: 1/2 in – 28 tpi tapered shoulder
- MUZZLE DEVICE: SIG Flash Hider-Compensator
- ACTION TYPE: Semi-Auto
- OPERATING SYSTEM: Mid-Length Direct Impingement
- STOCKTYPE: 6-Position Magpul MOE-SL Black
- GRIPTYPE: Reduced Angle
- TRIGGER TYPE: SIG 2-Stage Matchlite Duo
- TRIGGER SHAPE: Flat
- MANUAL SAFETY: Ambidextrous
- FORENDTYPE: M-LOK Moss Green Cerakote
- ACCESSORY RAIL: M-LOK/Picatinny
- MAG TYPE: AR-15
- MAGS INCLUDED: (1) 30rd Polymer Mag
- COLOR: Moss Green Cerakote
- RECEIVER FINISH: FDE Cerakote
- OVERALL LENGTH: 36.5 in
- COLLAPSED LENGTH: 33.25 in
- FOLDED LENGTH: N/A
- OVERALL WIDTH: 2.8 in
- HEIGHT: 7.1 in
- WEIGHT: 7 lbs
- FORWARD ASSIST: Yes
| Weight | 9.720 lbs |
|---|---|
| Dimensions | 46.250 × 11.300 × 4.250 in |
| Manufacturer | Sig Sauer |
| Barrel Length | 16.0 |
| Capacity | 30+1 |
| Action | Semi-Auto |
| Finish | FDE |
| Caliber | 5.56 NATO |
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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