Sig Sauer SIGM400 5.56 NATO 30+1 Cerakote Moss Green 16" Rifle
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 | MPN: RM400-SDI-16B-MSGRN | UPC: 798681701216 | Moss Green Cerakote | .223 REM / 5.56 NATO | Semi-Auto | 16" Barrel | 30+1 | 33.25"–36.50" OAL | 7 lbs
Mid-length direct impingement gas system. Fully ambidextrous controls. 1/2x28 threaded 16" barrel with Sig flash hider-compensator. 6-position Magpul MOE-SL collapsible stock.
Specifications:
- Brand: Sig Sauer
- Model: SIGM400
- MPN: RM400-SDI-16B-MSGRN
- UPC: 798681701216
- Category: Semi Auto Rifles
- Caliber: .223 REM | 5.56 NATO
- Action: Semi-Auto
- Barrel Length: 16"
- Barrel Threaded: Yes
- Thread Pitch: 1/2x28
- Barrel Attachment: Sig Flash Hider-Compensator
- Barrel Twist Rate: 1:7"
- Operating System: Mid-Length Direct Impingement
- Capacity: 30 + 1
- Overall Length: 33.25"–36.50"
- Weight: 7 lbs.
- Finish: Moss Green Cerakote
- Frame Material: Threaded
- Stock Material: Polymer
- Stock: 6-Position Magpul MOE-SL Collapsible
- Grips: Magpul MOE-SL Black
- Sights: (not specified)
- Trigger Type: Sig Two-Stage Matchlite Duo
- Safety Type: Lever
- Controls: Fully Ambidextrous
- Magazine Type: 1 x 30 rd. Polymer Magazine
- Hand: Ambidextrous
- Flash Hider: Sig Flash Hider-Compensator
- Operating Lengths: 33.25" collapsed to 36.50" extended
- Product Type: Firearm
- Alternate Model Name: M400-SDI X
- Included Accessory: 30 rd. Polymer Magazine
- Handguard: M-LOK (per distributor listing)
Technical Specifications
| Caliber | 223 Rem | 5.56 NATO |
|---|---|
| Capacity | 30 |
| Barrel Length | 16.00" |
| Action Type | Semi-Auto |
| Finish | Moss Green |
| Weight | 9.95 lbs |
| Overall Length | 36.50" |
| Frame Material | Alloy |
| Receiver Material | Aluminum |
| Stock Material | 6 Position Magpul MOE-SL |
| Barrel Description | Threaded |
| Sights | None |
| Trigger Type | Sig Two-Stage Matchlite Duo |
| Safety | Ambidextrous Thumb Safety |
| Thread Pitch | 1/2x28 |
| Twist Rate | Sig Flash Hider |
| Magazine Type | Polymer AR Style Magazine |
| Manufacturer | Sig Sauer |
| Model | SIGM400 |
| SKU | D983496 |
| UPC | 798681701216 |
| Availability | In Stock |
Customer Reviews
No reviews yet. Be the first to review this product!
Product Discussion
Questions or comments about this product? Join the discussion below. Please review our Community Guidelines before posting.
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 7048882913 or submit a question for assistance with shipping or returns.
Sig Sauer 516-Mohawk G3 Rifle 5.56mm 30rd Magazine 16 Threaded Barrel Adj. Gas System M-LOK Handguard
Sig Sauer
Sig RM400SDI16BR5FX M400 5.56 NATO 16" 30+1 Semi-Auto Black Rifle
Sig Sauer
Sig SAUER M400 SDI X-Series 5.56mm NATO 16in 30rd FDE Semi-Auto Rifle
Sig Sauer
Sig Sauer M400 5.56 NATO RM400-SDI-16B-P
Sig Sauer
Sig Sauer MPX 9mm rmpx16b935
Sig Sauer
Sig Sauer 516 G3 5.56 NATO R516G3556N16BCP1
Sig Sauer
What is MAP Pricing?
MAP stands for Minimum Advertised Price. It's a policy set by manufacturers that limits how low retailers can advertise their prices.
The good news? We can often sell below MAP - we just can't show that price publicly. When you request a price by email or add to cart, you'll see our actual (often lower) price.
This isn't a trick - it's how we stay compliant while still offering you the best deals possible.