AR15/M16 Left Handed Nitride Bolt Carrier Group 5.56/.223
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AR15/M16 Left Handed Nitride Bolt Carrier Group 5.56/.223

$124.95
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Carrier made with 8620 Steel and bolt made from 9310 Vac-Arc Premium Carburizing Steel which has a high core hardness and high fatigue strength unlike standard Hot/cold rolled 9310 steels. The nitride coating is the strongest plate available, it's the same protective finish that's used in gun barrels and CNC tool protection. If you're looking for a bolt carrier that's going to hold up against the roughest conditions then this bolt carrier group is the one for you.       - AR15 and M16 Compatible - 8620 Steel Carrier Nitride Coated - 9310 Vac-Arc Steel Bolt Nitride Coated - 4340 Steel Cam Pin Nitride Coated - 4140 Steel Gas Key Nitride Coated - Tool Steel Extractor Nitride Coated - Shot Peened - MPI (Magnetic Particle Inspected) - HPT (High Pressure Tested) - Gas key staked to Mil-Spec Standards - Grade 8 Hardened Fasteners - Extractor Insert with upgraded Crane O-Ring - Power Spring Kit   - Bolt engraved with MPI/9310    

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