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AR-15 5.56 Bolt - Nickel Boron Plated
AR-15 Bolt 5.56 Nickel Boron


 
List Price: $125.00
Our Price: $99.95

Availability:: Sold Out
Product Code: RA-NBB
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Description
 
Rainier Arms AR-15 Bolt for 5.56/.223/.300BLK - Nickel Boron Plated
This is a high quality drop-in bolt that is plated with Nickel Boron for an exceptionally hard surface that is 40% more wear resistant than chrome plating with an ultra-low friction coefficient. The surface is actually harder than the substrate underneath and will not peel, flake, gall or rub off. Nickel Boron bolt/carrier groups have been tested to function reliably for up to 50,000 rounds without additional lubrication. The reduced friction also means less heat so the parts last longer. These bolts are very easy to clean. Dirt and carbon brushes and wipes right off. Before being plated, these bolts are shot peened for surface uniformity and magnetic particle inspected to make sure there are no hidden flaws. Bolt includes extractor, ejector, and gas rings installed.
For AR-15 rifles chambered for: 5.56 NATO, .223 Rem, .300 BLK
Features
  • Nickel Boron Plating for ultra-low friction
  • Can run with little or no lubrication
  • Super easy to clean

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