Sig Sauer M400 X-Series 5.56 NATO 16" 30+1 Black Magpul SL-K Stock Flat Match Trigger
Shop Sig Sauer Products⚠️ FFL Required
This item requires shipment to a Federal Firearms License (FFL) dealer. You will need to select an FFL dealer during checkout.
Sig Sauer | SIGM400 (M400 X-Series) | MPN: RM400-SDI-16B-P | UPC: 798681664634 | Black (FNC) | 5.56 NATO / .223 Rem | Semi-Auto | 16" Barrel | 30+1 | 33.5" - 36.8" OAL | 7 lbs | 1:7 Twist | 15" M-LOK Handguard | Magpul SL-K Collapsible Stock | Flatblade Match Trigger | Thread Pitch 1/2x28
15" free-float M-LOK handguard. Hybrid flash hider/compensator muzzle device. Ambidextrous controls.
Specifications:
- Brand: Sig Sauer
- Model: M400 X-Series (SIGM400)
- MPN: RM400-SDI-16B-P
- UPC: 798681664634
- Product Type: Firearm
- Category: Semi Auto Rifles
- Caliber: 5.56 NATO
- Also Accepts: .223 Remington
- Action: Semi-Auto
- Capacity: 30 + 1
- Barrel Length: 16"
- Barrel Material: Chrome Moly Steel
- Barrel Profile: (Chrome Moly Steel)
- Twist Rate: 1:7
- Muzzle Device: Hybrid Flash Hider / Compensator
- Threaded Barrel: Yes
- Thread Pitch: 1/2x28
- Handguard: 15" M-LOK Free-Float
- Overall Length: 33.5" - 36.8"
- Weight: 7 lbs.
- Finish: FNC
- Frame / Receiver Material: Black Anodized Aluminum
- Stock Material: Synthetic
- Stock: Magpul SL-K 6-Position Collapsible
- Grips / Grip Type: Collapsible / Magpul SL Stock
- Sights: (no iron sights specified)
- Sights / Reference: 1:7 (twist rate)
- Trigger Type: Flatblade Match
- Safety Type: Ambidextrous
- Magazine Type: 1 x 30 rd. detachable
- Hand: Right
- Color: Black
- Country of Origin: (not listed)
Technical Specifications
| Caliber | 223 Rem | 5.56 NATO |
|---|---|
| Capacity | 30 |
| Barrel Length | 16.00" |
| Action Type | Semi-Auto |
| Finish | FNC |
| Weight | 10 lbs |
| Frame Material | Chrome Moly Steel |
| Sights | None |
| Trigger Type | Flatblade Match |
| Thread Pitch | 1/2x28 |
| Twist Rate | Hybrid Compensator/F |
| Manufacturer | Sig Sauer |
| Model | SIGM400 |
| SKU | D728918 |
| UPC | 798681664634 |
| Availability | In Stock |
Customer Reviews
Excellent
Great buying experience item arrived fast and as ordered
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Shipping & Returns
⚠️ FFL Transfer Required
This firearm must be shipped to a Federal Firearms License (FFL) dealer. You will select your FFL dealer during checkout. We ship to your chosen FFL dealer, and you complete the background check and pickup there.
Shipping Information
- Orders typically process within 1-2 business days
- Firearms ship via FedEx or UPS with signature required
- Tracking information provided for all orders
- Shipping costs calculated at checkout based on weight and destination
- Total delivery time to FFL: typically 3-5 business days
Return Policy
- Firearms must be returned unfired and in original packaging within 3 days of FFL transfer
- 15% restocking fee applies to all firearm returns
- Contact us for return authorization before shipping items back
- Original shipping costs are non-refundable
Questions?
Contact us at 502-272-4859 or submit a question for assistance with shipping or returns.
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