# Sig Sauer M400 Tread V2 TacPac 5.56 NATO 16in

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

## Specifications

- **Caliber:** 5.56 NATO
- **Barrel Length:** 16"
- **UPC:** 798681704606
- **SKU:** UCE3nP2PW

## Description

The Sig Sauer M400 Tread V2 is an AR-pattern semi-automatic rifle chambered in 5.56 NATO with a 16-inch barrel. The TacPac configuration includes a 30+1 round capacity and a ROMEO MSR red dot sight.

### Key Specifications
- **Brand**: Sig Sauer
- **Model**: M400 Tread V2
- **Caliber**: 5.56 NATO
- **Action**: Semi Auto
- **Capacity**: 30+1
- **Barrel Length**: 16 in

### Detailed Features
- 16-inch barrel
- TacPac bundle includes ROMEO MSR red dot sight
- 30+1 round capacity
- AR-pattern platform in 5.56 NATO

## Frequently Asked Questions

**Q: What caliber is the M400 Tread V2?**

A: The M400 Tread V2 is chambered in 5.56 NATO.

**Q: Who makes the M400 Tread V2?**

A: The M400 Tread V2 is made by Sig Sauer.

**Q: What type of firearm is the M400 Tread V2?**

A: It is an AR-pattern semi-automatic rifle.

**Q: What is the barrel length of the M400 Tread V2?**

A: The M400 Tread V2 has a 16-inch barrel.

**Q: How many rounds does the M400 Tread V2 TacPac hold?**

A: The TacPac configuration has a 30+1 round capacity.

**Q: Does the M400 Tread V2 TacPac include a red dot sight?**

A: Yes. The TacPac bundle includes a ROMEO MSR red dot sight.

**Q: Where can I buy the M400 Tread V2?**

A: Compare current vendor offers on this page.

## What Customers Say

*AI-generated insights from customer reviews*

The Sig Sauer M400 Tread V2 TacPac is popular as an out-of-the-box ready AR-pattern rifle, with the included ROMEO MSR optic cited frequently as a genuine value-add rather than a throwaway inclusion. Owners appreciate that the package gives them a functional zeroed-optic setup without an additional purchase.

Build quality is generally considered a step above budget AR manufacturers. The M400's trigger draws mixed comments; it works reliably but is not considered match-grade, and many owners report upgrading it as a first modification. Reliability with standard 5.56 and .223 ammunition is rarely a complaint.

Some buyers note that the TacPac pricing can float depending on retailer and period, which affects the perceived value calculation. Those who paid closer to MSRP still tend to rate the package positively based on the platform's overall reputation, while buyers who found it discounted are enthusiastic about the combination.

## Pricing

**2 offers available**

| Vendor | Price |
|--------|-------|
| Gunbuyer Com | $1069.99 |
| Buds Gun Shop | $1090.99 |

## Similar Products

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