LVA2™ Rail System
For SIG MCX Virtus & MCX LT Platforms
Next-Generation Titanium Rail Architecture — Engineered for 6.75” & 9” .300 Blackout Systems
The LVA2™ for the MCX Virtus and MCX LT is the evolution of our titanium ISR rail system — redesigned specifically around 6.75” and 9” .300 BLK barrel configurations.
Manufactured entirely from DMLS 3D-printed Ti-6Al-4V Grade 5 titanium, the LVA2 delivers unmatched rigidity, superior heat dispersion, and zero-retention performance that aluminum rail systems cannot replicate.
Purpose-built for suppressed platforms.
Optimized for professional end-users.
Designed to outperform.
CORE ARCHITECTURE
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Full Aerospace DMLS Titanium (Ti-6Al-4V Grade 5) Construction
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Integrated Receiver Index Tabs to eliminate counter-rotation
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First-to-Market Reverse Index Laser Retention Tab
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Precision Full Tang Lock-Up System
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Maritime Hex Surface Geometry for enhanced grip & thermal dispersion
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Nano Shield™ Thermal Dissipation Coating
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Continuous top rail alignment
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M-LOK compatible mounting surfaces
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Suppressor-optimized internal clearances
This is a structural upgrade — not a cosmetic enhancement.
AVAILABLE CONFIGURATIONS
SMALL — 6” LVA2
Compact. Suppressor-Ready. Controlled.
Engineered for the 6.75” .300 BLK barrel, the 6” LVA2 provides ideal suppressor clearance while maintaining the shortest effective footprint.
Ideal for:
Minimal footprint. Maximum rigidity.
MEDIUM — 8.5” LVA2 (MDK Compatible)
Modular. Expandable. Mission Adaptive.
The 8.5” configuration is the most versatile rail in the Virtus/LT lineup — and the only model compatible with the MDK Modular Accessory System.
Optimized for both 6.75” and 9” .300 BLK barrels, this configuration provides balanced control while enabling forward modular expansion.
MDK™ Modular Accessory System (8.5” LT Only)(Release Shortly)
The MDK system seamlessly integrates into the 8.5” LVA2 rail, extending overall length by approximately 4 additional inches without compromising rigidity or zero retention.
The extension locks directly into the titanium chassis architecture — not as an add-on clamp system — but as a structural continuation of the rail itself.
Result:
Seamless 12.5” extended profile with no flex or shift.
MDK Accessories Include: (Releasing Shortly)
• Integrated Suppressor Shroud
Protects from heat mirage and forward suppressor contact while maintaining airflow.
• Mirage Shield System
Reduces thermal distortion under sustained fire — optimized for night optics and magnified setups.
• Direct-Mount Light Interface
Integrated light positioning without additional offset brackets.
• Forward Control Extension
Extended M-LOK real estate for hand placement and accessory mounting.
• Future Expansion Modules (in development)
– Advanced IR bridge modules
– Mission-specific shield variants
– Additional thermal management options
The MDK system transforms the 8.5” LVA2 from a compact rail into a fully extended operational platform — without replacing the core rail.
LONG — 13” LVA2
Full-Length Control. Maximum Capability.
Designed around the 9” .300 BLK barrel, the 13” LVA2 provides full-length control and expanded accessory integration for advanced night-fighting and precision applications.
Ideal for:
Extended top rail continuity.
Maximum surface engagement.
Superior heat management.
LVA2 RSAR – 7.75” | SOCOM-Aligned Platform
Built for the next evolution of the RSAR ecosystem, the LVA2 RSAR 7.75” rail system delivers a purpose-driven interface for both SOCOM-issued 7.75” platforms and civilian RSAR configurations.
Engineered from the ground up around suppressed performance, the RSAR variant refines the LVA2 architecture into a compact, mission-adapted system—balancing extreme weight savings with full-spectrum capability for modern end users.
Mission-Driven Design
The LVA2 RSAR is optimized for the realities of suppressed short-barrel systems:
- Designed specifically for 7.75” RSAR barrel configurations
- Maintains a minimal footprint while preserving full mission capability
- Enables seamless integration of:
- LPVO optics
- Thermal clip-on systems
- Laser aiming modules
- White light / mission accessories
All without compromising ergonomics or weapon handling.
Extended “Diving Board” Interface
The RSAR variant incorporates an extended forward diving board—expanding the platform far beyond traditional short-barrel limitations:
- Extends total usable top rail space to ~11.5 inches
- Allows proper mounting of:
- LPVO + thermal clip-on combinations
- IR laser systems in correct forward positioning
- Full mission-essential enablers without crowding
This architecture enables operators to run full-length capability packages on a compact weapon system—without sacrificing balance, eye relief, or ergonomics.
WHY TITANIUM?
Compared to aluminum rail systems:
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Greater rigidity and structural integrity
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Superior thermal resistance
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Enhanced zero retention under sustained fire
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Increased durability in maritime environments
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Advanced internal reinforcement only possible through additive manufacturing
The LVA2 is printed — not traditionally machined — enabling geometry and strength profiles impossible in conventional rails.
6-8 week lead time on all rail systems.
