Sig Sauer SIGM400 SDI X Rifle 5.56mm 30rd Magazine(1) 16' Threaded Barrel M-LOK Handguard Moss Green Finish
$1,599.99
The Sig Sauer SIGM400 SDI X Rifle is a semi-automatic 5.56 NATO rifle featuring a 16-inch chrome/moly steel barrel and a 6-position Magpul MOE-SL stock, making it ideal for versatile applications such as tactical training and competition shooting. With its optics-ready design and SIG flash hider-compensator, this rifle is engineered for enhanced accuracy and performance.
8 in 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: Moss Green Cerakote TM
- 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 | 9.627 lbs |
|---|---|
| Dimensions | 46.300 × 11.250 × 4.250 in |
| Manufacturer | Sig Sauer |
| Barrel Length | 16.0 |
| Capacity | 30+1 |
| Action | Semi-Auto |
| Finish | Moss Green |
| Frame Material | Aluminum |
| 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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