The Sig MCX-Spear LT IR rifle built upon the legacy of its predecessor, the MCX Virtus. Features fully ambi controls; folding brace w/push-button hinge; reduced IR Signature Gen II NIR; interchangeability with all MCX LT barrels and handguards and Sig suppressor ready QD slash hider.
| FireArm | yes |
| Stock Description | Telescoping Folding |
| Weight | 7.5 lbs |
| Action | Semi-Auto |
| OAL | 35" |
| Stock Finish Group | Brown |
| Muzzle | QD Flash Hider |
| Trigger | Flat Blade Match |
| Hand | Ambidextrous |
| Receiver Material | Alloy Steel |
| Weight Range | 7 lbs to 7.99 lbs |
| Barrel Length | 16" |
| Twist | 1:7" |
| Barrel Length Range | 16" to 16.99" |
| Safety | Ambidextrous Lever |
| Capacity | 30+1 |
| Barrel Description | Steel Threaded |
| Caliber | 5.56 NATO |
| Sights | Optic Ready |