SIG MCX Spear
| SIG MCX Spear | |
|---|---|
XM7, U.S. Army variant of SIG MCX Spear | |
| Type | |
| Place of origin | United States |
| Service history | |
| In service | 2022–present |
| Production history | |
| Designed | 2019 |
| Manufacturer | SIG Sauer |
| Specifications | |
| Mass | 8.38 lb (3.80 kg) |
| Length | 36 in (914 mm) |
| Barrel length | 13 in (330 mm) |
| Cartridge | |
| Action | Short-stroke gas-operated piston, rotating bolt |
| Muzzle velocity | 915 m/s (3,002 ft/s) |
| Feed system | SR-25 pattern box magazine |
The SIG MCX Spear (stylized as MCX-SPEAR) is a multi-caliber rifle developed by the American division of SIG Sauer from the SIG MCX series of carbines. The SIG MCX Spear is primarily chambered in .277 SIG FURY but can be adapted to 7.62×51mm NATO and 6.5mm Creedmoor with a barrel change.