This is an OEM Sig Sauer MCX Bolt for both 5.56mm NATO and .300 Blackout.
This is the newer Tapered Lug design and is required for use with newer barrel assemblies that have -TAP in the part number. It is also backwards compatible with older barrel assemblies found on guns that shipped without -TAP in the part number.
Internal Reference:
KIT-MCX-BOLT
Barcode:
798681589968
| Brand: Sig Sauer |
| Model: MCX |
| Caliber: .223 Rem, .300 Blackout, 5.56mm |
| Part Type: Bolts |
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