The M400 X-series features a free-floating M-LOK handguard, Magpul SL-K 6-position telescoping stock, Sig Flat Match Grade trigger, 16″ Chrome Moly barrel, and a 7075 T-6 aluminum receiver with a black hardcoat anodized finish.
Sig Sauer RM400SDI16BP M400 X-Series 5.56x45mm NATO 16″ 30+1, Black,
Sig Sauer RM400SDI16BP M400 X-Series 5.56x45mm NATO 16″ 30+1, Black, Magpul SL-K Stock, OEM Polymer Grip, Flat Match Trigger
$1,499.99
20 in stock
| UPC | 798681664634 |
|---|---|
| Manufacturer | Sig Sauer |
| Manufacturer Part Number | RM400-SDI-16B-P |
| Action | Semi-Auto |
| Capacity | 30 + 1 |
| Caliber/Gauge | 223 Rem | 5.56 NATO |
| Barrel Length | 16" |
| Model | M400 SDI XSeries |
| Number of Magazines | 1 30 rd. |
| Thread Pattern | 1/2×28 |
| Rate of Twist | 1-in-7" |
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