Description
The SIG SAUER MCX-SPEAR LT IR in 300 Blackout is a factory-configured 9-inch Short-Barreled Rifle (SBR). This model features a monolithic upper receiver machined from 7075-T6 aluminum with a hardcoat anodized finish for extreme durability. It stands out with its integrated folding and telescoping stock, ambidextrous controls, and a free-floating M-LOK handguard. The rifle is optimized for suppressed fire and is ready to accept a wide range of optics and IR aiming devices.
Key Features
- Factory SBR with 9-inch cold hammer-forged barrel in 300 BLK
- Patented short-stroke gas piston system for reliable suppressed operation
- Integrated folding and telescoping skeletonized stock
- Free-floating 6-sided M-LOK handguard for accessory mounting
- Full ambidextrous safety, magazine release, and bolt catch
Specifications
| Caliber / Type | 300 AAC Blackout / SBR |
|---|---|
| Material | 7075-T6 Aluminum |
| Finish | Hardcoat Anodized |
| Compatibility | SIG MCX/SPEAR LT platforms |
| Weight | Approx. 6.2 lbs |
The 300 Blackout cartridge is engineered for optimal performance from short barrels, achieving full powder burn in the 9-inch tube. This SBR configuration, paired with the self-regulating gas piston, drastically reduces fouling and backpressure when suppressed. The platform’s monolithic upper ensures consistent zero retention for IR devices, making it a purpose-built tool for low-signature, close-quarters engagements.
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