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NBS .223/5.56 Bolt Carrier Group – Black Nitride

$99.00

The NBS .223/5.56 Black Nitride Bolt Carrier Group was designed with strength in mind. Starting with a 9310 Steel Bolt, which is aircraft-grade material, this bolt has a high core strength rating, a high fatigue strength, and a high hardenability rating. 9310 steel, when treated properly, is about 7% better than Carpenter 158 steel, so you know that you will have a dependable BCG, when you drop this into your rifle.

In stock

SKU: 4300 Category:
WEIGHT 11.408 oz
BOLT MATERIAL 9310 Steel
CARTRIDGE COMPATIBILITY .223/5.56 NATO/.300 BLK
FINISH Salt Bath Nitride
CARRIER PROFILE M16
HIGH PRESSURE TESTED Untested
MAGNETIC PARTICLE INSPECTED Magnetic Partical Inspected
PLATFORM AR-15
BOLT FINISH Nitride / Melonite

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