# Sig Sauer MCX RSAR 5.56 NATO 7.75in Black

**Brand:** SIG Sauer
**Category:** Semi-Automatic Handguns
**Caliber:** 5.56 NATO

## Specifications

- **Caliber:** 5.56 NATO
- **Barrel Length:** 7.75"
- **UPC:** 798681703845
- **SKU:** UCE3nP2DF

## Description

The Sig Sauer MCX RSAR is a semi-automatic pistol chambered in 5.56 NATO with a 7.75-inch barrel. This is a short-barreled pistol configuration; units sold as contract overrun units ship with a Pelican case and accept 30-round magazines. The RSAR designation refers to the Rattler variant of the MCX platform.

### Key Specifications
- **Brand**: Sig Sauer
- **Model**: MCX RSAR
- **Caliber**: 5.56 NATO
- **Action**: Semi Auto
- **Capacity**: 30 rounds
- **Barrel Length**: 7.75 in
- **Color/Finish**: Black

### Detailed Features
- 7.75-inch pistol-configuration barrel
- Ships with Pelican case (contract overrun units)
- 30-round magazine included
- MCX Rattler platform with folding capability
- Available as contract overrun production units

## Frequently Asked Questions

**Q: What caliber is the MCX RSAR?**

A: The MCX RSAR is chambered in 5.56 NATO.

**Q: Who makes the MCX RSAR?**

A: The MCX RSAR is made by Sig Sauer.

**Q: What is the barrel length of the MCX RSAR?**

A: The MCX RSAR has a 7.75-inch barrel.

**Q: How many rounds does the MCX RSAR hold?**

A: It accepts 30-round magazines.

**Q: What type of firearm is the MCX RSAR?**

A: The MCX RSAR is a semi-automatic pistol in the MCX Rattler platform configuration.

**Q: Where can I buy the MCX RSAR?**

A: Compare current vendor offers on this page.

## What Customers Say

*AI-generated insights from customer reviews*

Owners of the Sig Sauer MCX RSAR Rattler comment most on the compact form factor, which makes a 5.56 platform fit in spaces where a standard carbine cannot. The Pelican case that ships with the contract overrun units is a practical bonus that owners appreciate as a ready-made storage solution rather than an afterthought.

The 7.75-inch barrel draws the expected trade-off feedback. Shooters using it in close-quarters drills find the size ideal, while those who take it to the range for extended sessions note the blast and concussion are significant, especially without ear protection or a suppressor. The MCX RSAR's suppressor-host capability is frequently cited as a primary reason buyers choose it.

Pricing on contract overrun units is a point of discussion in owner communities. Some buyers see the overrun designation as a value opportunity with no functional difference from standard production, while others research the provenance carefully before purchasing. Build quality comments are uniformly positive; complaints center on cost of feeding 5.56 at volume from a platform this short.

## Pricing

**1 offers available**

| Vendor | Price |
|--------|-------|
| Guns Com | $3299.99 |

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