# SIG SAUER MCX Rattler LT .300 Blackout Tactical Pistol - Black

**Brand:** SIG Sauer
**Category:** Compact Handguns
**Caliber:** .300 AAC Blackout

## Specifications

- **Caliber:** .300 AAC Blackout
- **Barrel Length:** 6.8"
- **Capacity:** 30 rounds
- **Finish:** Black Anodized
- **Weight:** 92.8 oz
- **Overall Length:** 24.8"
- **UPC:** 798681699759
- **SKU:** UCE3nP19L

## Description

The SIG SAUER MCX Rattler LT is a semi-automatic pistol chambered in .300 AAC Blackout with a 7.75-inch cold hammer forged barrel and a folding pistol brace. The frame is black anodized aluminum. It ships with one 30-round magazine and has fully ambidextrous controls. Weight is 5.8 lbs and overall length is 24.75 inches.

### Key Specifications:
- Manufacturer: SIG SAUER
- Model: MCX Rattler LT Pistol
- Type: Semi-Auto Pistol
- Action: Semi-Automatic
- Caliber: .300 AAC Blackout
- Barrel Length: 7.75 inches
- Overall Length: 24.75 inches
- Capacity: 30 rounds + 1 (includes one magazine)
- Weight: 5.8 lbs.
- Finish: Black Anodized Aluminum Frame

### Detailed Features:
The cold hammer forged barrel contributes to good service life and consistent accuracy. Ambidextrous controls (charging handle, magazine release, and selector) work equally well for left- and right-handed shooters. The folding pistol brace reduces the overall footprint for storage and transport. No fixed sights are included; the optics-ready top rail accepts most standard mounts.

## Frequently Asked Questions

**Q: What caliber is the SIG SAUER MCX Rattler?**

A: The MCX Rattler is chambered in .300 AAC Blackout.

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

A: The MCX Rattler is made by SIG SAUER.

**Q: What type of firearm is the SIG SAUER MCX Rattler?**

A: It is a semi-automatic pistol with a folding pistol brace.

**Q: What is the barrel length of the SIG SAUER MCX Rattler?**

A: It has a 7.75-inch cold hammer forged barrel.

**Q: How many rounds does the SIG SAUER MCX Rattler hold?**

A: It has a 30+1 capacity and ships with one 30-round magazine.

**Q: Is the SIG SAUER MCX Rattler optic-ready?**

A: Yes. The top rail accepts most standard optic mounts; no fixed sights are included.

**Q: Where can I buy the SIG SAUER MCX Rattler?**

A: Compare current vendor offers on this page.

## What Reviewers Say

*Quoted verbatim from YouTube reviews. Each link opens the video at the moment quoted.*

> That's actually nice like The Recoil I was expecting more with such a a piston gun with a short barrel.
>
> — [Honest Outlaw](https://www.youtube.com/watch?v=6hNfrCuLR9s&t=292s)

> For how small this gun is, it shoots relatively the recoil is pretty negligible.
>
> — [Colion Noir](https://www.youtube.com/watch?v=fEF1CrXXrAA&t=210s)

> It functioned well I agree I mean it's reliable it's accurate.
>
> — [Honest Outlaw](https://www.youtube.com/watch?v=6hNfrCuLR9s&t=937s)

> It's expensive I think it's better than like a DI AR-15 chamber in 300 Blackout I think the MCX is much better.
>
> — [Honest Outlaw](https://www.youtube.com/watch?v=6hNfrCuLR9s&t=946s)

> 3 Blackout certainly is a niche cartridge but I think for like a PDW I mean I really like this thing it's short it's fast.
>
> — [Honest Outlaw](https://www.youtube.com/watch?v=6hNfrCuLR9s&t=972s)

## What Customers Say

*AI-generated insights from customer reviews*

The MCX Rattler LT in .300 Blackout is well-regarded for its compact size and the versatility of the cartridge. .300 Blackout handles subsonic and supersonic loads effectively, which matters for suppressor users. Build quality comments are consistently positive, and the ambidextrous controls get specific praise. Recoil at 5.8 lbs is manageable.

With supersonic loads and no suppressor, noise is noticeably louder than larger-platform rifles. Price sits at the upper end, and some potential buyers weigh that against similar options. Parts availability and aftermarket compatibility have come up occasionally, and customer service experiences with SIG appear mixed in forum discussions.

## Pricing

**3 offers available**

| Vendor | Price |
|--------|-------|
| Dirtybirdusa Com | $2499.99 |
| Primaryarms Com | $2499.99 |
| Guns Com | $3575.99 |

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