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Mfg Item #: RM400-SDI-16B-FDE
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Please ensure the items in your cart are legal to own in your area. It is your responsibility to know the firearm and magazine laws in your locality. Violations will incur a 10% restocking fee, deducted from your refund.
Firearms must be shipped to a licensed firearms dealer (FFL holder) and are subject to a background check prior to collection. NFA items require additional screening, as well as standard background checks. Please contact your designated FFL prior to purchasing any NFA item(s) to ensure that they are eligible to accept an NFA transfer.
The M400-SDI X was designed to meet the highest standards of performance and reliability. From the rifle's full suite of ambidextrous controls to its proven mid-length gas system. Features fully Ambi Controls- safety, charging handle, bolt Catch & mag release; 2-Stage Matchlite Duo trigger; free floating M-LOK; mid-length direct impingement operating system and 6 position Magpul SL stock.
| Action | semi-auto |
|---|---|
| Barrel | 16" |
| Finish | Flat Dark Earth |
| Length | 36.5" |
| Sights | None |
| Caliber | 223 Rem | 5.56 NATO |
| Capacity | 30 + 1 |
| Magazine | 1 30 rd. Polymer Mag |
| Rate Of Twist | 1-in-7" |
| Stock Frame Grips | Collapsible / Folding Stock Magpul BSL Pistol Brace |
| Nfa Thread Pattern | 1/2x28 |
| Additional Feature 1 | Aluminum MLOK Handguard |
| Additional Feature 2 | Sig Flash Hider Compensator |
| Additional Feature 3 | Sig 2-Stage Matchlite Duo |