CMMG AR-15 Bolt Assembly .223/5.56 — Black

$76.51

Replacement bolt assembly for AR-15 platforms chambered in .223 Rem/5.56 NATO. Features a 9310 steel bolt and 4140 steel extractor with phosphate finish; ejector, extractor and gas rings pre-installed. Black matte finish.

SKU: RSR|CMMG55BA457 Category:

This CMMG bolt assembly is a direct replacement component for the AR-15 platform specified for .223 Rem/5.56 NATO cartridges. The assembly ships with the ejector, extractor and gas rings pre-installed to simplify installation and reduce assembly time. The bolt is manufactured from 9310 steel with a phosphate finish while the extractor is made from 4140 steel with a phosphate finish. Finished in black matte, the assembly is intended for maintenance and upgrade applications where durable, serviceable components are required.

Key Specifications

  • Compatible with the AR-15 platform.
  • Chambering specified as .223 Rem/5.56 NATO.
  • The bolt is made from 9310 steel with a phosphate finish.
  • The extractor is made from 4140 steel with a phosphate finish.
  • Ships with ejector, extractor and gas rings pre-installed.
  • Color is Black.
  • Finish is Matte.
  • Product type is listed as Part.
  • Subcategory is Long Gun Parts.

Built from quality steels and finished for corrosion resistance, this CMMG bolt assembly provides a dependable replacement or upgrade option for routine maintenance and long-term service. The pre-installed components and durable phosphate finishes make it well suited to range use and regular upkeep where consistent, reliable parts matter.

UPC

815835012490

Manufacturer

CMMG

Manufacturer Part Number

55BA457

Color

Black

Product Type

Part

Shipping Weight

0.0

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