SIG MCX RATTLER for Sale
Browse SIG MCX Rattler listings from verified sellers across the U.S. on GunsAmerica.
Quick Look
The SIG MCX Rattler was developed by SIG Sauer as a compact, mission-driven personal defense weapon. Designed to deliver rifle-caliber performance in an ultra-short platform, it excels in suppressed and close-quarters applications. Its adaptability and elite-tier performance have made it a sought-after firearm among professionals and civilians alike.
Why It's a Top Choice
- Chambered in .300 BLK for optimized subsonic performance
- Ultra-compact barrel for discreet carry and tight maneuvering
- Fully ambidextrous controls for tactical versatility
- Pistol and SBR configurations available
- Compatible with suppressors and folding stocks
Key Variants
Sig MCX Rattler Canebrake
Purpose-built for suppressed use with built-in faux suppressor for training and balance.
Sig MCX Rattler 5.5"
5.5-inch barrel SBR ideal for close-quarters duties and vehicle operations.
Sig MCX Rattler Pistol
Pistol configuration without stock, offering compact legality for civilian ownership.
Competitor Comparison Table
| Feature | Sig Mcx Rattler | Daniel Defense PDW | Maxim Defense PDX |
|---|---|---|---|
| MSRP | $2,300+ | $2,000+ | $2,200+ |
| Capacity/Size | 30+1, ultra-compact | 32+1, short PDW size | 20+1, small footprint |
| Weight | 6.1 lbs approx | 5.7 lbs | 5.9 lbs |
| Optics-Ready | Yes | Yes | Yes |
| Trigger Type | Mil-spec | Flat-face | Single-stage |
| Notable Pro | Modified gas system for suppressed fire | Lightweight with intuitive ergonomics | Highly durable SCW stock |
| Notable Con | Premium pricing | Limited aftermarket | Reduced capacity |
Best Use Cases
- Special operations and tactical response
- Suppressed close-quarters defense
- Concealable vehicle deployment
- Firearm collections with military pedigree
- Urban or home defense use
FAQs
What is the barrel length of the SIG MCX Rattler?
The standard MCX Rattler features a 5.5-inch barrel optimized for .300 Blackout and suppressed use.
Can I convert the Rattler into a short-barreled rifle?
Yes, with proper ATF registration, the pistol version can be fitted with a stock to become an SBR.
How does the Rattler perform suppressed?
Its dual-position gas piston system is tuned for optimal reliability with suppressed fire, especially with subsonic ammo.
Prefer nearby results? Toggle to search local listings.
SIG MCX Rattler LT .300 BLK Pistol with
$2,595.00
Sig Sauer MCX Rattler 5.56 5.5" SBR
$2,599.99
Sig Sauer MCX Rattler LT 7.62x39 7.75" P
$2,199.00
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