# Sig Sauer M400 Tread 5.56 NATO 16in Black

**Brand:** SIG Sauer
**Category:** AR Style Rifles
**Caliber:** 5.56 NATO

## Specifications

- **Caliber:** 5.56 NATO
- **Barrel Length:** 16"
- **UPC:** 798681715282
- **SKU:** UCE3nP5Bi

## Description

The Sig Sauer M400 Tread is a semi-automatic rifle chambered in 5.56 NATO with a 16-inch barrel in Black. It is offered in both 10-round and 30+1 configurations depending on the compliance variant. The M400 Tread is a production semi-automatic rifle in the M400 line.

### Key Specifications
- **Brand**: Sig Sauer
- **Model**: M400 Tread
- **Caliber**: 5.56 NATO
- **Action**: Semi Auto
- **Capacity**: 10rd / 30+1
- **Barrel Length**: 16 inches
- **Color/Finish**: Black

### Detailed Features
- Semi-automatic operation in 5.56 NATO
- 16-inch barrel
- Available in 10-round and 30+1 configurations
- Black finish
- M400 Tread furniture and grip configuration

## Frequently Asked Questions

**Q: What caliber is the M400 Tread?**

A: The M400 Tread is chambered in 5.56 NATO.

**Q: Who makes the M400 Tread?**

A: The M400 Tread is made by Sig Sauer.

**Q: What type of firearm is the M400 Tread?**

A: It is a semi-automatic AR style rifle.

**Q: What is the barrel length of the M400 Tread?**

A: The M400 Tread has a 16-inch barrel.

**Q: How many rounds does the M400 Tread hold?**

A: It is available in both 10-round and 30+1 configurations depending on the compliance variant.

**Q: Where can I buy the M400 Tread?**

A: Compare current vendor offers on this page.

## What Customers Say

*AI-generated insights from customer reviews*

Owners of the M400 Tread point to reliability as the primary reason for the purchase. The 5.56 NATO chambering with a 16-inch barrel is a well-established combination, and most owners report no issues through early range sessions. The Tread-specific furniture and grip texture get consistent positive feedback for feel and grip in varied conditions.

The trigger is functional but is often called the first upgrade candidate. Owners doing precise work tend to swap it; those running the rifle as a general utility firearm usually leave it alone. The 10-round compliance variant occasionally frustrates buyers who expected the standard 30+1 configuration, so verifying the SKU before ordering is worth doing.

The M400 Tread is generally viewed as a production semi-automatic rifle without surprises, which suits a specific type of buyer perfectly. Comparisons to other Sig offerings in the same category come up in owner discussions, and most feel the Tread delivers consistent value. Occasional mentions of finish showing wear earlier than expected appear, though these are not widespread complaints.

## Pricing

**11 offers available**

| Vendor | Price |
|--------|-------|
| Classicfirearms Com | $882.42 |
| Grabagun Com | $889.99 |
| Shootingsurplus Com | $912.90 |
| Buds Gun Shop | $924.49 |
| Gritrsports Com | $969.99 |
| Kygunco Com | $984.23 |
| Centerfiresystems Com | $984.99 |
| Impactguns Com | $986.19 |
| Deguns | $1027.99 |
| Selwayarmory Com | $1027.99 |

*...and 1 more offers*

## Similar Products

- [Sig Sauer M400 Tread V2 TacPac 5.56 NATO 16in](https://gunsnation.com/p/sig-sauer-m400-tread-v2-tacpac-5-56-nato-16in/UCE3nP2PW)
- [Sig Sauer M400 5.56 NATO 16in Black](https://gunsnation.com/p/sig-sauer-m400-5-56-nato-16in-black/UCE3nP81q)
- [Sig Sauer M400 5.56 NATO 16in Black](https://gunsnation.com/p/sig-sauer-m400-5-56-nato-16in-black/UCE3nOpT7)
- [SIG Sauer M400 Forge 5.56 NATO 16in Black](https://gunsnation.com/p/sig-sauer-m400-forge-5-56-nato-16in-black/UCE3nPCgk)
- [Sig Sauer M400 Forge 5.56 NATO 16in Black](https://gunsnation.com/p/sig-sauer-m400-forge-5-56-nato-16in-black/UCE3nPCgr)
- [Sig Sauer M400 Tread - 5.56 NATO, 16" Semi-Auto Rifle, Black](https://gunsnation.com/p/sig-sauer-m400-tread-5-56-nato-16-semi-auto-rifle-black/UCE3nOacH)

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*Data from [GunsNation](https://gunsnation.com)*