SIG Sauer MCX SPEAR LT Complete Bolt Carrier Group – 5.56mm / .300 BLK (8901278)

This genuine SIG Sauer complete carrier group is the factory replacement for the SIG MCX SPEAR LT in 5.56mm / .300 Blackout. It arrives as a complete group including the bolt assembly, bolt carrier, springs, guide rods and op rod. SIG Sauer part number 8901278, UPC 798681675364.

Everything in One Assembly

Rather than sourcing individual components, this group includes the full set of parts SIG lists for the SPEAR LT carrier, from the firing pin and cam pin to the dual recoil springs and op rod. It is a clean way to replace a worn group or keep a factory-correct spare on hand.

What's Included

• Bolt assembly and bolt carrier
• Firing pin, firing pin spring, firing pin lock and firing pin retention pin
• Cam pin
• Slotted pin and slotted pin spring
• (2) Coiled pins and O-ring
• Recoil plate and guide plate spring
• (2) Spring guide rods and (2) recoil springs
• Op rod

Specifications

• Manufacturer: SIG Sauer
• Part Number: 8901278
• UPC: 798681675364
• Fits: SIG MCX SPEAR LT
• Caliber: 5.56mm / .300 Blackout
• Type: Complete carrier group