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The M400 Tread is an optics ready, aluminum frame rifle. The Tread features a 16" stainless steel barrel with a free-floating M-Lok handgaurd, a single stage polished/hard-coat trigger, ambidextrous controls, a Magpul SL-K six position telescoping stock, a mid-length gas system, and is chambered in 5.56 NATO.
Specifications:
- Mag Type: AR-15
- Mag Included: 1- 30rd
- Barrel Length: 16"
- Caliber: 5.56 NATO
- Height: 7.5"
- Overall Length: 30.8"
- Overall Width: 2.5"
- Twist Rate: 1:8"
- Weight: 7lbs
- Operating System: Direct Impingement
- Action Type: Semi-Auto
- Stock Type: 6 Position Magpul SL-K
- Barrel Material: Stainless Steel
- Trigger Type: Single Stage Polished/Hard-Coat
- Forend Type: Alloy
- Grip Type: Polymer
- Receiver Finish: Hard Coat Anodized
- Threads: 1/2x28
- Accessory Rail: M-Lok
| Manufacturer | SIG SAUER |
| Model | SIGM400 |
| UPC | 798681665488 |
| SKU | RM400-16B-TRD-DC |
| Weight | 9.7500 |


