# SIG Rattler LT 5.56 NATO Compact Tactical Pistol w/Brace

**Brand:** SIG Sauer
**Category:** Subcompact Handguns
**Caliber:** 5.56 NATO

## Specifications

- **Caliber:** 5.56 NATO
- **Barrel Length:** 7.7"
- **Capacity:** 30 rounds
- **Finish:** Black
- **Weight:** 88 oz
- **Overall Length:** 17.5"
- **UPC:** 798681699766
- **SKU:** UCE3nP19S

## Description

The SIG SAUER MCX Rattler LT is a compact semi-automatic pistol chambered in 5.56 NATO / .223 Remington. A 7.75-inch barrel keeps overall length to 17.5 inches, and the folding pistol brace lets you shift between a stowed and ready configuration quickly. The rifle weighs 5.5 lbs and holds 30+1 rounds.

### Key Specifications
- **Model:** MCX Rattler LT Pistol
- **Caliber:** 5.56 NATO / .223 Remington
- **Barrel Length:** 7.75 inches
- **Overall Length:** 17.5 inches
- **Capacity:** 30+1 rounds (includes one detachable magazine)
- **Weight:** 5.5 lbs
- **Finish:** Black anodized aluminum receiver, carbon steel barrel
- **Stock/Grips:** Folding pistol brace
- **Rate-of-Twist:** 1:7 inches

### Detailed Features
The folding pistol brace extends for added stability and folds flat for storage or transport. The M-Lok handguard provides multiple attachment points for lights, lasers, and foregrips without adding significant bulk. The SIG QD SR Flash Hider reduces muzzle flash. Ambidextrous controls work equally well for left- and right-handed shooters. The aluminum receiver and alloy frame construction keeps weight down while handling use in varied environments.

### Usage Scenarios
The compact dimensions work in tight spaces for home defense, and the 30-round magazine means fewer reloads. The 5.56 NATO chambering keeps recoil manageable. The M-Lok handguard accepts accessories readily for both recreational and competitive shooting configurations.

## Frequently Asked Questions

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

A: The MCX Rattler is chambered in 5.56 NATO / .223 Remington.

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

A: It has a 7.75-inch barrel.

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

A: It has a 30+1 capacity and includes one detachable magazine.

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

A: The MCX Rattler is made by Sig Sauer.

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

A: It is a semi-automatic pistol in the subcompact handgun category.

**Q: Is the MCX Rattler threaded?**

A: Yes. Several listings describe it with a threaded barrel.

**Q: Where can I buy the 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)

> 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 SIG Rattler LT in 5.56 NATO gets broadly positive feedback with pricing as the main point of debate.

The compact size is consistently cited as the primary appeal, with owners noting it handles well in tight spaces while still taking standard 5.56 magazines. The folding brace earns positive comments for adding shoulder stability while keeping the pistol classification. Build quality and reliability under hard use come up frequently as genuine strengths.

Accuracy feedback is good across typical engagement ranges. Most users report solid performance with standard ammunition.

The most common criticisms are price relative to other 5.56 pistols, weight that some find heavier than expected given the compact dimensions, and occasional questions about magazine and accessory compatibility.

## Pricing

**7 offers available**

| Vendor | Price |
|--------|-------|
| Gunbuyer Com | $2499.99 |
| Classicfirearms Com | $2499.99 |
| Palmettostatearmory Com | $2499.99 |
| Buds Gun Shop | $2499.99 |
| Grabagun Com | $2499.99 |
| Primaryarms Com | $2499.99 |
| Guns Com | $2574.99 |

## Reviews

**Average Rating:** 5.0/5 (1 reviews)

> **lizzie5** (5/5): Exceptionally well balanced with almost no felt recoil. Mine has shown the reliability and build quality I expect from SIG.

## Similar Products

- [Sig Sauer MCX Rattler LT 7.62x39mm Compact Rifle - Optic Ready](https://gunsnation.com/p/sig-sauer-mcx-rattler-lt-7-62x39mm-compact-rifle-optic-ready/UCE3nOwhh)
- [Sig Sauer MCX Spear LT 5.56 NATO 11.5" Pistol - Coyote Tan](https://gunsnation.com/p/sig-sauer-mcx-spear-lt-5-56-nato-11-5-pistol-coyote-tan/UCE3nOrHb)
- [Sig Sauer MCX Rattler LT - Compact 7.62mm Tactical Pistol](https://gunsnation.com/p/sig-sauer-mcx-rattler-lt-compact-7-62mm-tactical-pistol/UCE3nP19Z)
- [Sig Sauer MCX Rattler LT 5.56 NATO 9in FDE](https://gunsnation.com/p/sig-sauer-mcx-rattler-lt-5-56-nato-9in-fde/UCE3nP3ss)
- [Sig Sauer MCX Rattler LT: Compact Tactical 5.56mm Carbine](https://gunsnation.com/p/sig-sauer-mcx-rattler-lt-compact-tactical-5-56mm-carbine/UCE3nOxDM)
- [Sig Sauer MCX Spear-LT MultiCam 5.56 NATO 11.5" Pistol](https://gunsnation.com/p/sig-sauer-mcx-spear-lt-multicam-5-56-nato-11-5-pistol/UCE3nOxbX)

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