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Phase 5 AR-15 Nickel Boron Bolt Carrier Group

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Our Price: $140.00
We currently have 4 available.
Item Number: URPP5BCGAR15NIBX
Manufacturer: Phase 5
Manufacturer Part No: BCG-AR15 NIBX

The Nickel Boron coated Bolt Carrier Group enhances reliability, lessens cleaning time, improves corrosion resistance and minimizes required bolt lubrication. - Nickel Boron coated bolt carrier, heat treated & hardened. - Hardened gas key, grade 8 hardened fasteners. Cleaning is minimal, usually requiring only a soft cloth. Permits firing for longer periods of time between cleaning, as dirt and powder residue has no wet or oily surface to cling to.

Nickel Boron provides a high lubricity and low friction co-efficient, greatly increasing the life expectancy of a firearm due to reduced friction wear. EXO Technology creates a competitive advantage for all kinds of components, because treated parts run dramatically longer and more accurately with less maintenance. Further, EXO greatly enhances heat dissipation, so treated products run far cooler than non-treated parts.

The EXO process is permanent, lasting for the entire lifespan of treated parts. A patented, nodular nickel-boron (NiB) surface treatment, EXO nucleates on the surface atoms of metals, becoming part of the metal rather than merely applied to the outside. In addition, the treated surface becomes harder than the substrate itself, eliminating the cost, weight and degradation problems of conventional hardened metals.

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