BCM Bolt Carrier Group MPI Auto M16

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BCM Bolt Carrier Group (MPI) - Auto (IONBOND Finish)

BCM® Bolt Carrier Group (MPI) - Auto

List Price: $225.00
Our Price: $199.95
You Save $25.05!

Stock Status: In Stock
Product Code: BCM BCG AUTO IB

Description

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Ionbond Finish -

Ionbond coatings advantages

• reduced coefficient of friction

• increased abrasive wear resistance

• antiscuffing/antigalling

• high fretting resistance

• high pitting resistance

• resistance to corrosion and hydrocarbon fuels

• high integrity of surface structure

• good adhesion to base materials

IonBond coatings directly improve wear resistance due to their high hardness, low coefficient of friction and high structural integrity. These coatings with thicknesses of only a few microns and with hardness up to 4000HV, result in increased firearm life and functionality. The IonBonded finishes, absorb oil and release it over time due to the unique characteristics.

This BCG has the following Ionbond Coated Parts

Bolt

Ejector

Extractor

Carrier

Gas Key

Cam Pin

Firing Pin

BCM® (MPI) complete bolt carrier group is fully assembled.

Bolt carrier group (auto version) for your AR15, M16, or M4. Parkerized exterior and chrome lined inside carrier. Machined to USGI specifications. This M16/M4 carrier includes the proper Mil-Spec gas key. Gas key is chrome lined and heat treated per GI specifications. Gas key is secured to carrier via USGI domestic mfg Grade 8 fasteners and properly staked per Mil-Specs. These properly hardened parts insure a strong staking and proper gas system functioning.

The bolt assembly is machined from the correct Mil-Spec Carpenter No. 158® steel, shot peened for increased strength, includes tool steel machined extractor and ejector, BCM Extractor Spring, and is HPT (High Pressure Tested) and MPI (Magnetic Partical Inspected).

Features

Milspec Carpenter No. 158® steel
HPT Bolt (High Pressure Tested)
MPI Bolt (Magnetic Particle Inspected)
Shot Peened Bolt
Chrome Lined Carrier (AUTO)
Chrome Lined Gas Key
Gas Key Hardened to USGI Specifications
Grade 8 Hardened Fasteners
Key Staked Per Mil-Spec
Tool Steel Extractor
BCM Extractor Spring
Black Extractor Insert
Mil-Spec Crane O-Ring

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