Sig Sauer MCX Spear-LT IR 223 REM / 5.56 NATO Sig Sauer MCX Spear-LT IR 223 REM / 5.56 NATO MANUFACTURER: SIG SAUER FAMILY: MCX Series MODEL: MCX Spear-LT IR TYPE: Rifle ITEM GROUP: Tactical Centerfire Semi-Auto Rifles ACTION: Semi-Auto CALIBER/GAUGE: 223 Rem | 5... MSRP: Was: Now: $2,600.00 Add to Cart