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Black Rain AR-15 Bolt Carrier Group, Nickel Boron Plated, Complete BCG

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Black Rain
Ships from Warehouse 1
Typically ships the same business day when ordered before 4pm CST.
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This drop in Black Rain AR-15 BCG will increase reliability and ease of cleaning with nickel boron plating.

Nickel boron parts are known for high hardness, good adhesion, excellent lubricity, low coefficient of friction and uniform coverage. 
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