SIG MCX VIRTUS for Sale
Browse Sig MCX Virtus listings from verified sellers across the U.S. on GunsAmerica.
Quick Look
Originally developed as part of the SIG MCX line in 2015, the Sig MCX Virtus builds on modularity and adaptability for mission-specific performance. Designed for elite military and law enforcement, it offers unmatched configurability and suppressed fire capabilities. Today, it stands as a top-tier rifle for tactical enthusiasts and professionals alike.
Why It's a Top Choice
- Short-stroke gas piston improves reliability in adverse conditions
- Modular barrel change system supports caliber swaps quickly
- Fully adjustable folding stock for multiple shooting positions
- Monolithic upper with M-LOK handguard for accessories
- Designed for suppressor use with adjustable gas settings
Key Variants
Sig MCX Virtus Patrol
Optimized for defensive and patrol roles with a 16-inch barrel in 5.56 NATO.
Sig MCX Virtus SBR
Short-barreled 11.5-inch version ideal for compact maneuverability in close quarters.
Sig MCX Virtus Pistol
Pistol variant with brace, suited for civilians desiring compact tactical function.
Sig MCX Virtus 300 Blackout
Chambered in .300 BLK for optimal subsonic suppression and indoor operations.
Sig MCX Virtus 7.62x39
Expanded caliber support for shooters preferring proven intermediate rounds.
Competitor Comparison Table
| Feature | Sig Mcx Virtus | Daniel Defense M4A1 | FN SCAR 16S |
|---|---|---|---|
| MSRP | $2,200+ | $1,900+ | $3,500+ |
| Capacity | 30+1 | 32+1 | 30+1 |
| Weight | 8.1 lbs (Patrol) | 6.74 lbs | 7.25 lbs |
| Optics-Ready | Yes | Yes | Yes |
| Trigger Type | Matchlite Duo | Mil-spec | MIL-STD |
| Notable Pro | Highly modular with caliber conversion | Military-grade durability | Proven NATO deployment |
| Notable Con | Heavier than AR-15 peers | No folding stock | High cost |
Best Use Cases
- Law enforcement duty rifle
- Suppressed tactical operations
- Self-defense in rural or suburban settings
- Advanced carbine training and competitions
- Collector interest in military-inspired platforms
FAQs
Can I change calibers on the Sig MCX Virtus?
Yes, the MCX Virtus allows caliber swaps with kits for 5.56 NATO, .300 BLK, and 7.62x39.
What is the average barrel life of the MCX Virtus?
Barrel life depends on caliber, but average life runs between 10,000–20,000 rounds with proper care.
How does the Sig MCX Virtus handle suppressed fire?
It features an adjustable gas regulator optimized for suppressed or unsuppressed settings, enhancing reliability.
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