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Centurion Arms CMR Bipod Stud


Centurion Arms C4 Handguard

Centurion Arms C4 AR15 Bolt Carrier Group

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Quick Overview

Centurion Arms C4 Bolt Carrier Group was created with MPI tested bolts and marked to give you the ultimate confidence in your weapon system.

Availability: Out of stock

Regular Price: $124.95

Special Price $119.95


This full auto carrier is heat treated and precision machined. The gas key is staked on both sides of both bolts.


    Mil-spec Carpenter No. 158
    MPI bolt (magnetic particle inspected)
    Shot peened bolt
    Chrome lined carrier (auto)
    Chrome lined gas key
    Gas key hardened to mil spec
    Grade 8 fasteners
    Staked gas key
    Tool steel extractor

Additional Information

Bolt Material Carpenter 158
Plating Phosphate
Carrier Profile Full Auto
Extractor Material Tool Steel
Extactor Manufacturing Type Billet
Gas Key Material 4140
Gas Key Manufacturing Process Billet
Color Black

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